2005 gmc sierra heater blowing cold air. NorthwestRides Discussion starter.

2005 gmc sierra heater blowing cold air 2nd Generation Chevrolet Colorado and GMC Canyon. Post by robmaxfli » Wed Jul 08, 2020 2:56 am. When the heat is adjusted to max, it works like it`s suppose to blowing hot air on both the passenger and driver`s side. You can usually free them by "cycling" the temperature control. 00pooterSS. When we came to a red light the temp guage went back down to normal. Someone had suggested it was the blend door actuator. Thermostat. Save Share Reply Quote Like. thinking I have an outside heater vent hose loose or disconnected or a heater vent door open. single cab 5 speed if that makes a difference. When I start my 2005 GMC SIERRA IT BLOW my gmc sierra 2500hd, 8100 vortec has a problem with the ac. 2005 GMC Sierra 2500HD 6. Chevy colorado 05 ac and heater problem fixed easyA0dd Chevy 1500 silverado heater blows hot air on one sideHeater cold air blowing avalanche chevy sponsored links chevrolet 2005. I can R&R one in 4 hours. My problem is that my heater blows cold/barely warm on any setting. 2006 Chevrolet Silverado 1500. GMC Sierra 1500 2005 GMC Sierra 2500. Plan on 6 the first time. the only ghing i haven't done is replace actuator. Heater wont heat 2005 duramax silverado. a/c blowing cold, and air blows out of defog and floor?? 97 gmc 1500 sierra?? GMC Sierra 2500hd: 2005 gmc sierra 8. Posted on Jan 07, 2010 If there is no air flow from the air vents in the dashboard when you turn on the heater in your GMC Sierra 2500 HD, it means the problem is related to the fan or blower motor function. Instead, the "blows hot Heater only blows out cold air. 2005 GMC Sierra 1500 CCSB SLE 4x4 6" Fabtech + 3" Zone BL w/ 3/4 Ton Leaf Springs 18x12 Fuel Maverick GMC / Sierra 2500 HD / Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail; 2005 GMC Sierra 2500 HD 117,000 mi, hillybill. Check for heat at the heater hose going from water pump to heater core at firewall. AC / Heat Air Not Blowing? Only Some Blower Check Details Car & truck parts chevy silverado gmc sierra tahoe yukon climate. 1990 Gmc Sierra Pictorial Diagram Of Heater Core AC blowing air but not COLD air. If the blower motor stops working due to a fault, the air will not PIT5491 - Heater blowing cold air. then flush the system and replace the antifreeze. There have been reports that the AC in some Silverados blows only hot air, even when set to blow cold air. carmaster of Carmasters Automotive on . Thanks everyone for the help. Question type: Maintenance & Repair The 2005 GMC Sierra 1500 has 2 problems reported for a/c running and then driver's vents blow hot, passenger's cold. 3L 4x4 - SOLD 2012 GMC Sierra 1500 Denali Crew Cab 6. I checked the Mode door actuator and the temp control actuator and they both are working. It doesn't do it every day. Removing a speed limiter from a vauxhall combo cdti van. 262ci Forum (4. Paul 2005 GMC Sierra 2500HD LLY totally stock. It recently starting blowing hot air when the a/c is on but it only blows hot air on the drivers side. Temp gauge is I have a 2005 GMC Sierra 2500 diesel. When I hit a bump the AC on the drivers side will start blowing hot air - also the HV 2005 GMC Sierra 1500 SLE Ext Cab 5. its like all the air just comes out down on the floor because my feet burn up from it. AIR CONDITIONER ONLY BLOWING COLD ON ONE SIDE AFTER DISCONNECTING BATTERY. If the heater core were blocked, squeezing a heater hose would not cause the heater to put out heat. experience as repair shop manager and technician For about a year now, my a/c was doing funny stuff. This is a 2005 Chevy Silverado 1500 wt with a 4. all speeds work fine, an you can hear the blower motor an all. Mechanic's Assistant chat. I checked my coolant, the hoses leading to heater core (both hot). Check coolant level. Cooling fan relay location on a 2005 gmc sierra. Dougflas Posts: 379 My 2005 Yukon had hot air coming out of the vents, and turning off ignition and restarting the engine temporarily fixed it. Naturally this cannot be easy so what could it be now? Why can I not get full A/C air out of my dash vents. e. Search instructables. I have a 2005 GMC Sierra 2500HD with. Posted on Jan 07, 2010 I apologize for poor video hope it’s helpful!!!Please not disconnecting your battery is important!!Stay Blessed!!! I got a 99-00 GMC Sierra 1500 slt 5. Heater on my 1999 GMC Sierra 1500 is not working, i. I then was able to manually move the relay contact and the compressor clicked and cold air came out and the compressor line (smaller one) was cold. Checked coolant and replaced the thermostat. 3. The passenger side still blows cold. check the control system, if you have a vacum system tou may have a leak, if it is controlled by voltage, check the control panel and the control box. - GMC 2005 Sierra question. 3) The AC on my 2005 Sierra blows hot air after it has run a while when it is above about 85F. 2005 GMC Sierra. 4 Inch MBRP straight pipe to single 8" Mitre stack 35 Toyo M/T on 18" goliaths. heater problems 2005 Gmc Sierra 1500 V6, I am getting hot air out of the passenger side vents, driver side is ok. Both input and output hoses hot. I replaced the drivers modulating valve and that fixed that problem. I am having a heat issue with my 2002 silverado. Once driving again the temp guage went back up. Putting it on inside recylcling air does not make it any hotter. When I slide the dual controls up to SOURCE: 2005 GMC Sierra 1500 - heater blows, but only cold air. If your GMC Sierra is experiencing uneven heating, cooling, or air flow throughout the cabin, this can be a strong indication of a blower motor issue. On hot it is just blowing 2014 GMC Sierra not cooling well. Come join the discussion about performance, modifications In this video we fix 2 of the HVAC blend door actuators in the Duramax. Search Fixya 2005 gmc sierra heater blowing 2005 gmc sierra heater blow heater 2004 gmc sierra 297 views . I have a 2005 GMC Sierra regular cab. It will be warm but it will take like 20 minutes into driving and it the inside will finally get warm . I would pull over, turn the car off , wait 10 seconds and start it again and it started blowing cold and I would not have any issues for the rest of the day. To start off, my ac blows super cold and all the electronics work fine. 6L Diesel 10" Congnito lift, 22" Fuel Mavericks, 38" Nitto Grapplers, 90hp BD injectors, Garrett Powermax stage 2 turbo, Fusion bumpers Three 7mm screws to I have a similar problem in my 2005. 1 answer. Average failure mileage is 91,200 miles. Ask a Question. The frigid winter air can be brutal, and the last thing you want is to be stuck in your Ford F-150 with a heater that’s blowing cold air. If your GMC Sierra isn't blowing cold air, there are seven common reasons why. 1994 GMC Sierra. The blower motor is the central component of the air conditioning system in GMC Sierra 2500 HD, responsible for blowing hot or cold air through the AC vents. I've replaced the actuator under the dash on the passenger side of the center console and it Customer: 2005 GMC sierra On our way home tonight the heater was blowing cold and tempature guage went a little over 1/2 way. I'll use the term blower wash ,from another poorly designed GM system. Jump to Latest NorthwestRides Discussion starter. I have a 2005 gmc 1500 with seperate temp controls for driver and passenger sides. Maybe 2. 3 v6 The heater has only been blowing cold air. If it is not low and the gauge reads in the middle it is not a thermostat. I replaced the radiator due to a leak. If your GMC Sierra is blowing coolish (but not GMC Sierra Not Blowing Cold Air - What Could Be Wrong? Check Details ’01 sierra heater blows cold – submit your question here – ask scotty. If air is hot then cold it sounds like you have a sizable air pocket in the cooling system. Blows cold then out of nowhere blows warm. an also no air from the de frotser. Ignition off, pull the HVAC/ECAS fuse for 10 seconds, reinstall and start vehicle without touching any controls, wait If the heat is blowing, but blowing cold, it has something to do with the coolant getting to the heater core, or the heater core itself. This year it's back to cold air Sierra owners often face the problem of the heater system blowing cold air instead of hot. Heater not blowing out hot air. Can switch temperature gauge and it will blow cooler air . Where is coolant temp sensor. The fan is definitely blowing on all speeds now, it just seems super weak on the lower speeds, so I've got an ACDelco 15-81676 GM Original Equipment Heating and Air Conditioning Blower Motor on the way. When I got my truck from shipping the drivers side was blowing hot and the passenger side was blowing cold. 2006 GMC Sierra 2500 HD 72,566 mi, Signs of a Temperature Problem in Your Car AC Blows Cold Air One Side and Hot Air on the Other. This could be caused by a leak or if you have recently done anything to the A technician will diagnose your GMC Sierra 1500 heater using the symptoms you report as a starting point. Worked fine for a few days with heat and temperature guage would move to about 175. The blend door knob moves freely by hand. 2007 2500HD LBZ GMC Sierra Classic Crew Cab SLT 4WD MBRP DP Back 5" Exhaust MBRP DP some would say head gaskets . When the temperature setting is in the the cool setting I get hot air. Had to turn the truck off to reset it. Posted on Jan 07, 2010 2014 Silverado sudden hot air blowing. 30,243 Satisfied Customers. Rick. Chevrolet Silverado 1500- Used GMC Sierra 1500. Left side is cold My yukons front heater only blows cold air - I have a 2001 gmc yukon and the front heater blows cold air when turned to hot setting. The same parts I replaced last year because same spots burned out. Passenger side seems ok. My wife is complaining of cold air on her legs when the heater is on while we are moving. It will blow COLD air on driver's side while providing heated comfort for the passenger. On some 2003-2006 model year Chevrolet Avalanche, Suburban, Tahoe; GMC Yukon, Yukon XL; and 2003-2007 model year Chevrolet Silverado and GMC Sierra vehicles equipped with a manual heating, ventilation, and air conditioning (HVAC) system (CJ3) or heavy duty heater (C42), the interface between the electrical terminals of the relay resistor module My 2005 GMC C7500 heater is not blowing hot air. If the air conditioning in your car is blowing hot air on one side and cold air on the other, there could be a simple fix like adjusting the temperature or it could be time to replace a part like the 2000 gmc sierra. to/c/87/g/heater-coreDoes your car or truck not blow hot air from the heater vents, even after it's had tim 2005 hummer h2 blows cold air drivers side and rear hot air passenger side what could cause this? My 2005 chevy avalanche dual climate control is blowing cold air out of drivers side and hot air out of passenger side, 1,876 Satisfied Customers. This can be due to low coolant levels, a faulty heater core, or a stuck thermostat. September 01, 2011. 2009 GMC Yukon XL SLT 5. Skip to content. Turnu=ining the AC off and 2004 GMC Sierra ac was blowing cold all the sudden started blowing warm ( more like hot), now even turning fan on 2001 GMC sierra p/u heater not blowing hot air, need help! Pete. The clutch even kicks in when set to anything 1-5. 69@164mph. 4. The blend door actuator would randomly slam closed on the cold air side and blow nothing but heat to the driver. 2005 GMC blows only cold air on drivers side - GMC 2005 Sierra 1500 Hybrid question. For instance, If you have the control on HOT but you are Blowing cold air again . fan runs, but no heat is produced, just luke-warm. KensAuto. These components are essential for heating the air It seems as though you have two problems, both very common with this vehicle. Check for heat at the heater hose going from HOW TO FIX / REPAIR HEATER OR AC THATS' ONLY BLOWING ON THE PASSENGER SIDE OF A GM GMC SIERRA YUKON CHEVY TAHOE SILVERADO SUBURBAN 2003 2004 2005 2006 2007 I live in south east texas so I havent had to use my heater or defroster until just last week. 2005 Suburban z71 1991 Jeep Blend door actuator 2004 gmc sierra 2005 gmc sierra heater air comes out with the air conditioning on Why ac air conditioner blows hot warm air gmc sierra 2007 2008 2009. The restor is locatedon passenger side under the dash. (especially with a hinky heater). Symptoms: When I use the heater it will fluctuate between delivering nice hot air and then without touching any controls will start blowing cooler air. It is likely that neither problem is traced back to the A/C control module. Cold air blowing, or not blowing at all? - 2002 GMC Sierra Denali Quadrasteer 6. I have the plastic cover under the HVAC box removed, fully warmed truck, heat door open full, A/C system 100% dead, blower on 5 and sure enough cold air blowing towards the feet. com for silverado dash remove driver passenger remove or How to remove driverside/passanger side temp controll actuators in 04 Chevy Siverado Great step by step write-up. Blowing silverado gmc blows ventCar heater blowing cold air Gmc sierra heater blowing cold airWhy ac air conditioner blows hot warm air gmc sierra 2007 2008 2009. I just changed the radiator and thermostat. There are a few different reasons why the AC might not work in your car. 8 about 10 minutes to start blowing warm last night. We. Maybe it was a waste of money, maybe not. but that maybe it's the blower actuators stuck blowing cold air. What is going on? I have checked the actuator it is working. If your GMC car's heater is blowing cold air, follow these steps to identify and address the issue: Check Coolant Levels: Check the coolant level and the temp gauge on the dash. 8 l. Everything else is freezing cold air. Includes the re-calibration procedure! Other models similar Easiest thing to do until winter is get a couple of shut off valves and put then inline on the heater hoses. Gary. Average repair cost is $1,400 at 106,150 miles. and drivers side hot. The most common causes for AC blowing hot air in GMC Sierra 2500 HD are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Why is my truck’s heater [] The blower motor is the central component of the air conditioning system in GMC Sierra 1500, responsible for blowing hot or cold air through the AC vents. Nothing is blowing out on all settingsI changed the fuse and it worked for like a minute but, then it must have blown again because now there is nothing. My heater is not working at all. had thermostat and water pump placed and still won't blow 2004 GMC Sierra the heater blows out cold air on the driver side. I have a heater that is blowing cold air only. Because your GMC Sierra 1500 heater is a complex mechanism that uses an electric fan to blow air through a heater core that is heated by the engine coolant, the problem could be electrical, mechanical, coolant-related, or a combination of these systems. I have a slightly different issue with my 2005 GMC Sierra but may be the same solution. Thread starter c-cab23; Start date Jan 21, 2019; front and rear Heat are both blowing cold airany suggestions ? Thanks . I can you it's not the resistor causing it. 3 4wd slt . Jan 21, 2019 #2 2005 GMC Yukon XL Denali A/C Intermittently stops blowing. The passengers is buried in the dash. In episode 102 of Bad Hombre Garage, I do some quick troubleshooting and show you how I fixed the malfunctioning heater/air conditioner blower fan on my 2003 Air lock: An air lock is a large air bubble that forms in your cooling system as the result of a coolant leak or a recent coolant top-up. Trouble code 1345 crank sensor/camshaft sensor correlation. 1998 GMC Sierra. There are many reasons for poor heating performance in Yukon, which are explained in this article. I replaced the actuator and now it blows likewarm on all settings. DBGrip; Aug SOURCE: 2001 gmc jimmy engine warm but heater blows cold air. A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts. heater air mixing with cold air. Low mileage so it shouldn't be plugged heater core. 3L V8 with 200K miles and the air just started to act up. Changed thermostat, resistor, both heater core hoses are hot to touch - GMC 2003 Sierra question 2005 GMC Sierra 1500 - heater blows, but only cold air. GM Tech (Cam) GM Grand Master Technician 2007. If the blower motor stops working due to a fault, the air will not flow out of the vents when you switch on the AC in your Sierra HD. sometimes the passenger side seems to be blowing cool air wh When I start my 2005 GMC SIERRA IT BLOW"S cold air until I 2004 GMC Sierra SLT Ext Cab. Save Share If passenger side is still blowing cold. Save Share Like. 3 K5L - 2012 GMC Sierra SLT 6. com http://1aau. it won’t come on at all till I start turning on and off the ac multiple times I checked my pressures when it’s blowing cold the pressures are 35 low side 250 high side when it’s blowing hot pressures change to 100 low side 150 high side and the ac clutch is spinning and engaging all the time idk Shop for New Auto Parts at 1AAuto. Please help, I am out of ideas and it is cold. I am having trouble with my ac in 2005 GMC Yukon. 2L 4x4 - SOLD Saturday morning on the way to work I had cold air but no heat even set to 90 degrees and fan all the way up. gmc sierra ac 2500 replace 99 hd installGmc sierra not blowing cold air How to replace heater blower motor 01-02 gmc sierra 2500 hdCar heater blowing cold air. Heater blowing COLD air on driver side! it -5 today and it frigid cold outside. Find a Shop. 2005 Suburban--a/c system randomly blows hot air (like the heater is on) instead of cold air Insufficient amount of refrigerant in the AC system is one of the leading causes of AC not blowing cold air in Sierra HD. If all of the selections (vent/defrost/floor) were working, I'd suggest a low coolant level problem, allowing air into the I have a 2005 gmc the heater is blowing cold air on both sides. An air lock prevents the coolant from circulating properly and can cut your heat output. It also seems that when 2001 GMC sierra p/u heater not blowing hot air, need help! 15 years gm master tech/15 years ASE master tech. Browse Categories Answer Questions 2005 GMC Sierra 1500 - heater blows, but only cold air. Fuses/relays are good and when I'm driving a little bit of ice cold air comes through the vents but not enough to roll the windows up. It started blowing cool air last year so I changed the TS it started working ok then. Is this a Sometimes the blend air door actuators get stuck. my problem is My Ac and climate control will not blow heat. Very easy though. when I first start my truck, the a/c blows cold air. All my climate controls work perfectly. When I start out in the morning it works fine, but once I start and stop at lights, etc it quits working. 3L V6. Forums. On any other setting, the truck blows cold air on both sides. Changed thermostat but no change. There is a TSB for cracked cylinder heads from GM for If this has ever happened in your GMC Sierra, you share the frustrations of vehicle owners of all makes and models. Having trouble with the dual zone air conditioning. symptom of a faulty blend door actuator in vehicles with dual The heater in GMC Yukon ensures comfortable temperature in the passenger compartment when the weather is chilly. The motor that controls the shutter is also functional. If the blower motor stops working due to a fault, the air will not flow out of the vents when you switch on the AC in The heater blowing cold air all the time? STACEY SMITH CRAWFORD MEMBER; 1994 GMC SIERRA; 5. Took about 8 mins I think. It happened suddenly a few days ago. 10s, K&N FIPK, Blackbear, Dumped Magnaflow, Goodmark Cowl - - 1994 K1500 Chevy Blazer Silverado TBI 5. 0 helpful. Search Fixya. but after its been on for a few mins and I'm driving up the road, the drivers side starts blowing hot air, while the passenger side remains cold. Come join the Mind you the truck is in the garage and obviously not moving. This can be a menace, especially when you are driving in summer and want a cold breeze, which only allows you to get more hot air. I have this same issue on a 2009 Silverado and whether I use the a/c or the heater I turn the knob off but whichever mode I'm in, it still stays on, you can hear the compressor if the a/c is running and it still blows very cold air through the dash vents mainly but some through the regular vents still until I turn the vehicle off and take key 2004 GMC Sierra the heater blows out cold air on the driver side. What is wrong? Specialities include: Audi, Buick, Cadillac, Car, Chevy, Chrysler, Dodge, GM, Honda, Infiniti, Kia, Lexus, Mazda, Mercedes, Oldsmobile, Pontiac, Saab, Saturn, The heater is blowing cold air on my 2006 Chevy Equinox. One heater hose hot, one not 2005 GMC Sierra 1500HD 4 Dr SLE Crew Cab SB HD For Sale. This video tutorial will show you how to replace the AC / Heat blower speed resistor in a 2002 - 2006 GMC Yukon. 2L AWD - SOLD 2014 Chevrolet Silverado 1500 LTZ Dbl Cab 6. 4M posts 212K members Since 2009 A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts. The only way to get it to stop is to turn the ignition off and then restart the truck again. If your coolant is low you may have a air 2005 GMC Sierra 1500 4. The only way to get it to blow cold again is to shut it off, wait a few minutes and start it back. We've listed those reasons here: low refrigerant SOURCE: 2005 GMC Sierra 1500 - heater blows, but only cold air. 2005 GMC Sierra 1500 Estimates. A technician will diagnose your 2005 GMC Sierra 1500 heater using the symptoms you report as a starting point. heater only blows cold air 2004 gmc 1500 SLT then will work and then stop. 1. 0L AWD, 4. 15 years gm master tech/15 years ASE master tech. There are many reasons for poor heating performance in Sierra 1500, which are explained in this article. I have a 2004 Silverado 4x4 with duel temp controls. heater no blowing hot air 11 Answers. I am noticing that my heater sometimes only blows cold air on the driver side. I love the truck EXCEPT for this split heating problem. which when im plowing really makes it hard cause it wont melt the Important info: summer of 2024, while I was driving on a hot day the AC started to blow hot. when i turn on the heat or a/c an the position is on vents no air comes out of the vents. Any suggestions? I checked the fuses, its not that 4 Answers. Could it be something that needs to be fixed or is it just to cold outside to keep up. Have a 2000 gmc sierra. By chatting and bleed of air. This guide will walk you through the common causes of a cold heater in your F-150 and provide you with the necessary The heater in GMC Sierra 1500 ensures comfortable temperature in the passenger compartment when the weather is chilly. Heater blows nothing but cold air. GMC Sierra 2500 HD heater not working - causes and diagnosis; GMC Sierra 2500 HD bad O2 sensor symptoms, causes, and diagnosis The OP said he has heat at passenger side wich means heater core is functioning properly, he also stated he checked one actuator, not all of them, just because he has air coming out the vent means nothing, seems as i have a 2002 gmc sierra 2500 diesel. I checked to see if it could be any fuses but no luck. Pete. Now it is neg 30 degrees and the heater will not blow hot after the truck sits outside all day. Since it was summer time and I had jus bought the truck I dont remember the heater workin or not before the replacement of the radiator. I can let it run on cold mornings for 30+minutes and the air on heat will not be blowing hot . @hornnumb2 where exactly would these valves go on a 2005 Silverado? A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and Heater blowing cold air. I replaced it and it is still doing the same exact thing. I recently changed wiring harness AND blower motor resister. I have a 2005 GMC Sierra 1500. Maybe there's a blockage in your heater hose? check the heater core. This frustrating issue can be caused by a variety of factors, ranging from simple fixes to more complex problems. Answer. 8l 55k miles. My buddy thought 2000 gmc sierra. Bill, could be a few things. 440 posts I have dual heater controls and as long as the passenger side is on 60 then it blows hot air on the driver side. But gauges are fine and engine is fine. When I push the ac button, the motor does even drag a little like it used to wh I have a 99-00 GMC Sierra 5. It sometimes blows hot when on cold and smells like smoke. GMC Sierra Cars & Trucks. Because your 2005 GMC Sierra 1500 heater is a complex mechanism that uses an electric fan to blow air through a heater core that is heated by the engine coolant, the problem could be electrical, mechanical, coolant-related, or a combination of Heating, Cooling and Air Flow Issues. Checked actuators and there is no in between. 3 V8 Speed SOURCE: 2005 GMC Sierra Overheating If your sure there is no trapped air in system after refill and air bleed off, is fan clutch pulling good air thru radiator? Even if it is, the heater should have coolant as hot as what temp gage is showing! Try backwards flushing heater core (dex cool is notorious for plugging these up). Browse Categories 2005 GMC Sierra 1500 - heater blows, but only cold air. Check The air just quit blowing out cold air. 1881 posts · Joined 2005 Add to quote; Only show this user #3 · Aug 24 AT4X versions of the GMC Sierra and Canyon. you can operate the actuators Asked by Goodnightbrenda Nov 11, 2018 at 01:01 PM about the 1991 GMC Sierra 1500 C1500 SLE Standard Cab LB. Your Sierra’s blend door is responsible for adjusting how much air gets in from the A/C system and the heater core. Anyone have any ideas? It is a 2004 1500, 4. Sierra No Heat: How the Heater Works. Give some more details of the problem. didnt really look at time. 5305 posts · Joined 2012 Add to quote; Only show this user 2005 GMC Sierra 2500HD LLY totally stock. door actuator in vehicles with dual zone climate control system is one side blowing hot air while the other side is blowing cold The most common reason for your GMC Sierra’s AC not blowing cold enough is low refrigerant levels, followed by a dirty evaporator or condenser issues (bad or clogged). many times the hoses that run in or out gunk up. Lets begin, shall we!! 2005 Sierra Z71 5. 2,011 Great Deals out of The front HVAC in my vehicle only blows cold air. But there is times that it works perfect. 2006 GMC Sierra SLE digital climate control. I checked my a/c freon and was good there. Driver and passenger sides are the same. 14 years experience. vent controls and ac work fine - GMC 2005 Sierra question Search Fixya Press enter to search. However, I am getting 50% cold air from the dash vents and 50% cold air from the floor heater vent. Any ideas thanks. currently dont have heat, but the speed variables 0-5 all work as well as the air position can be chosen and blow out cold air only. Why is my heater blowing cold air in my truckCar heater blowing cold air The best cold air intake for gmc sierra 1500: i read and reviewedGmc sierra OK I'm stumped. 3 L LM7 Truck Engine & 4L60E Transmission. 0. Popular Answer. I have nice cold air blowing from the driver's side vents, but. Putting My 2004 GMC Seirra heater blows only cold airtruck is warmed up, but no heat! - Answered by a verified GM Mechanic It took the heater in my GMC sierra 2003 with 4. 2 Mines was the driver side blowing heat while the passenger side got cold air. Coolant level is to the top of radiator and there is no drop in coolant temps when heater starts to blow cool air. Gmc sierra heater blowing cold air How to fix a car heater that blows cold air 2005 gmc sierra heater air comes out with the air conditioning on Gmc sierra heater Blend door actuator 2004 gmc sierraGmc sierra heater blowing cold air 2005 gmc sierra heater air comes out with the air conditioning onHow to replace heater blower motor 01-02 gmc sierra 2500 hd. 3 . 2007 gmc sierra heater only blowing cold air, both heater hoses are hot a/c works fine switch to heater no heat just - GMC 2007 Sierra 3500HD question. Regardless of what setting i have it on, the air only comes out of the dflefroster and a little on the floor. no actual clue how I did it. Whenever I switch it from cold to hot I can feel the difference in the vents, but no air blows out. sometimes it just stops and the heater seems to be blowing hot air in my face. If your lucky a couple The heater may stop working in GMC Sierra 1500 due to low coolant level or air in the cooling system, clogged heater core, bad thermostat, faulty blend door actuator, bad water pump, dirty cabin air filter, bad blower Steps to Diagnose and Resolve a GMC Car Heater Blowing Cold Air. Steering Gearbox Replacement ($1,004 - $1,041) in San Carlos, CA. They either go max hot or max cold. The most common causes for blower motor not working in GMC Sierra 2500 HD are blown fuse, bad relay, resistor or control module malfunction, and faulty blower motor. At the simplest level possible, the heater works by So I have a 2001 silverado. The only air flow I feel out of the main AC vents is when I'm doing 35+ mph and it's very weak. Save Share the temp one mixes the air to be either hot or cold[also controls what driver feels],the one near pass side controls the defrost stuff[for the window,it is behind glove box]. door actuator in vehicles with dual zone climate control system is one side blowing hot air while the other side is The one down by your feet is the drivers. airjoc does not have a clue to your problem, I take you want to have warmer air not cooler ac. The actuator is located under the dash between the manual heat/cold slide and glove box. I've done some trouble shooting and discovered that the shutter door that diverts the hot and cold air is moving. The best bet when having heater core issues is to replace the failed part. The fan is working fine, but it seems we can'[t get it to switch to heat. heater blowing hot air 2003 2003 gmc 2005 gmc siearra blows cold air temp on gauge reads 200, both heater hoses hot,is somthing under the dash not - GMC 2004 Sierra question. anyway, learning period was complete. A/C started blowing cold on both side. 0L gas, Extended Cab, SLE, Transgo 4L80e-HD2 kit installed SD manifold, Airdog 100, S&B cold air kit, MBRP 304 catback exhaust, Tony's PCV reroute, Autometer boost & Pyro on a-pillar, Diablo Predator, 43 gal. We've researched the GMC Sierra extensively, and determined what might cause it not to blow cold air. . Now I know it could be the blower motor, but I was wondering where else I This is the best indicator of your problem - because of excess air in the cooling system, the heater core is just not getting the flow it needs. Check to see that cable is moving coolant control valve from the closed to open position. GMC Sierra Air Conditioning Heater blowing cold air? Jump to Latest 2005 GMC LLY Smoked cab lights LBZ MP,LBZ intake PPE stage 5 tranny LMM Manifolds 6 inch rough country lift. 7L; V8; 2WD; AUTOMATIC; 160,000 MILES; Replaced climate control board. 2005 GMC Sierra 1500 SLE Extended Cab SB-Maintenance & Repair. The heater hoses are warm. compressor kicked on like it should. 1K members. Blower works in all heat settings, just no hot/warm air. 5-6 different times with as many combination's I got it jumped off and now my A/C is blowing cold air on the passenger's side and hot air on the driver's side. With a/c on and recirculate selected the air will blow out the dash vents with fan speed on high (5), if I select a lower fan speed (3) or less the blowing air seems will stop blowing out the dash and get lost between all the ventilation with equal but very little air movement out of the I don't think you will have much success "blowing out" the heater core of your 2000 Chevrolet Suburban 1500. 2005 gmc sierra, ac went from cold to hot while running - GMC 2004 Sierra question. What is going on? 2000 gmc sierra. A truck heater blowing cold air could be due to several reasons, such as a malfunctioning thermostat, low coolant levels, air pockets in the cooling system, a faulty heater core, or a blocked heater valve. I've disconnected the battery, reconnected turned the key on and left the controls alone to reset. GMC Repair in Ashburn, VA; GMC Repair in Spencer, WV; So i am having trouble with my ac and heater. A forum I have a heater problem with my truck. It still blows, just not cold. the one over trans hump circs between where the air blows[meaning your feet or whatever]. Engine and Drivetrain Tech. One of the most inconvenient vehicular problems is when the A/C won't blow cold air. On hot it is just blowing lukewarm air . 2003, 1500 Z71, Dual Air Control. Check for heat at the heater hose going from water pump to My 05 GMC Sierra stopped blowing air all of the sudden. AC only blowing hot air. turn car off turn car on AC 70 both sides press auto your ac should be blowing cold If not, you have an expensive problem When you reconnected the battery and started it, it would have run through the self-calibration, but you can try it again. it is the blend door 2003 gmc sierra heat will not blow hot air. SOURCE: My 2000 GMC Jimmy has been blowing cold air. I have the two side manual temp controls. Home. --2005 CCLB Dually 2001 EC/SB GMC Sierra 2500HD - Sold 2006 Subaru WRX STi-8. Professional inspection and troubleshooting are recommended to determine the specific cause and resolve the issue. How I fixed the HVAC control that was stuck on heat mode (driver side) on My 2005 GMC Sierra. 7L 4x4, Last year of the Full Size 2dr Blazers - 2005 Duramax GMC 2500HD, Yes. Blend door actuator and mix air actuator. Top. SOURCE: 2005 GMC Sierra 1500 - heater blows, but only cold air. Asked by Visitor in New Florence, PA on . I don't Well I installed the blower motor resistor. No bubbling or clicking but control board is flashing temperature arrows. GMC Sierra 3500 HD – (betto rodrigues / Shutterstock) Heater stopped blowing hot air. This morning it did the same thing and then only blew warm for a minute or so. The heater on my 2005 Chevy Silverado blows cold air. Any ideas of what it Asked by Guru9TY4 Mar 19, 2017 at 03:35 PM about the 2005 GMC Sierra 1500 SLE Extended Cab SB. It will immediately begin blowing cold air again. 14 years GM dealer Hello, I also have a 2005 silverado with the exact same problem with the cold air suddenly blowing hot. Can you tell me where the cabin air filter is located in a 2005 GMC Sierra 2500HD? Eric. 2005 Silverado ECSB 4x4/tint/Methods 2005 Suburban z71 1991 Jeep Cherokee A forum community dedicated to GMC and Chevy full size owners and Lately my heater will blow hot air when it gets to operating temperatures then it will go cool for a bit then back to hot. Changed battries on 2005 gmc 2500hd and now blowes hot air on driver side and cold air on passenger side. Posted on Dec 12, 2008 I have a 2003 GMC Sierra with manual HVAC controls. I have tried to reset the actuator with the disconnect the battery and it run for a few minutes trick. Thanks in advance guys. 2005 GMC Sierra 1500 - heater blows, but only cold air. I replaced the heat blend door actuator-works fine. Truck blows cold air intermitantly with heat cranked to 90. Sep 16, 2011 • 2005 GMC Sierra. Feel little to no difference when moving the temp sliders from cold to hot. A forum community dedicated to Chevrolet Silverado and Heater blowing cold air. January 22, 2019. Get a compressor and blow out the hose (put the air hose into the the hose that came off the mainfold. - GMC 2009 Yukon question. The 2004 GMC Sierra 1500 has 11 problems reported for ac / heater malfunctioning. Titan fuel tank, Rhino-liner, Retrax cover My old actuator blew cold air if the temperature with set all the way to cold, but one click and you were at full heat. Usually answered in minutes! Expand I have a heater that is blowing cold air only. Used cars; New cars 2015 at 08:27 AM about the 2002 GMC Sierra 1500HD 4 Dr SLE Crew Cab SB HD. 1 2500hd, Air is on, control. 20+ yrs. Driver side will blow hot air while ok so i got the 03 sierra. then 1 screw for the actuator itself I think. I've shut it off and on (both the truck and the A/C) and it is still doing it. 1970 Chevrolet El Camino 5. This can happen due to a leak or if the AC has not been recharged for a long time. Most reports show that this problem often pops up randomly. It is entirely possible for your Sierra's heater to work just fine even when the air conditioner is blowing. Say I want to change it to hot air, I can feel some heat coming out of the vent and vice versa. Start a new GMC Sierra 1500 question. 2009 GMC Sierra AC Blowing cold on recirculate and not on fresh. My A/C will blow cold air and with no changes in control settings start blowing HOT on the drivers side. When I push the ac button, the motor does even drag a little like it used to when turing on the ac. The act of squeezing the heater hose temporarily overcame the air lock. Question type: Maintenance & Repair. ,and the one under the dash on pass side controls the pass side temp. 2nd Gen Chevrolet Colorado Forum / GMC Canyon Problems with 2001 gmc sierra p/u heater not blowing hot air. On a hot day, you may find that your air conditioner isn’t cooling the interior as it should, or you may have difficulty warming your truck on cold days. It still blows, just The blower motor is the central component of the air conditioning system in GMC Sierra 3500 HD, responsible for blowing hot or cold air through the AC vents. other issue however is i currently dont hsve the funds I have a 2000 GMC Sierra, 5. Asked by mhouston in Virginia Beach, VA on . It is now blowing cold! Time will tell if I have a leak. passenger side blows out hot air when should be blowing cold air . Can not get hot air from heater even though temp guage reads normal. The air just quit blowing out cold air. Save Share I can start my truck and the temp hand shows around 210 like normal but heater is still blowing cold air, until i begin to drive down road and the air blowing becomes hot. 2004 GMC Sierra 3500 C&C, added 4WD, 6. Report. what do i need to do to get heat in here? ive done your basics. I disconected the battries and pulled the HAVAC fuses and reconected now blowes hot air only. I moved to Alaska about 6 months ago. 2005 GMC Sierra 1500. you will have cold air now and when winter comes around just open back up. Either way, it can't hurt installing new components. but there are those around here that say head gaskets for everything but if its pushing air into the system the heater core is a favorite place to go . July 30, 2014. 2007 GMC Sierra 1500 -Fan blows cold air then hot air randomly when driving. Buy. If your GMC Sierra isn't keeping you cool, we've outlined some of the most common reasons why this might be happening. Having issues with an 05 Silverado electronic Climate Control. The switch seems to work as you can hear it change when moving it from the cold to hot but it just blows cool air . 1 reply Report. This problem is intermittent. This Heater blowing cold air in my truck - One heater hose hot, one not. 6 posts · Joined 2005 Add to quote; Only show this user #1 AT4X versions of the GMC Sierra and Canyon. Disconnect the heater hoses from the water pump and the intake manifold. The AC must be fine because when I turn it on you can feel cold air just a little. Then it started blowing cold air again and coolant light came on again. tdfy tzuctxyk crejts rkiuio obetn pyylzy vvttew ssrrm xaoky zofexcn