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I am new to the forums and hoping someone may have seen this or run into this before. I own a 2012 Silverado LTZ Crew Cab, 5.3L, 2WD, 102K miles, Factory radio with a harness plug for a an amp for subs. Electric drop down side steps. LED headlights & fogs. K&N Nighthawk Intake. Battery is less than a year old but i'm in Arizona so batteries get wrecked yearly. I recently took my truck to my local DIY car wash place where I always go. I washed my truck like normal and dried it off like normal. I did not spray engine bay, just the front grill area inward but not heavy. I don't usually use my AC but I'm in Arizona and it was about 109* outside. When I was leaving the car wash I kicked my AC on so I wouldn't mess up the clean windows from rolling them down. I proceeded to leave and as I was coming to the stop sign before making my turn and my truck's idle started to drop, truck kinda sputtered, the battery voltage dropped, the stabilitrak light, traction light, ABS light, all kicked on. The radio shutoff and turned back on. The AC shut off and turned back on, but switched from recirc to fresh. I turned the AC off and then back on again and continued to drive home. It did it a few more times so I swung into the gas station to park and see if it would do it while i was sitting there. Nothing. So back on the road again, turned my AC on and hit the next light, and it did it again. I changed my oil today (6/13), I cleaned my K&N air filter last weekend. I took a trip to Lowes this morning to see if it was still doing it, and sure enough it was. The photos are attached of it doing it in the lowes parking lot before I left. I rolled the windows down, turned the AC off and cruised home. It didnt do it again. So I am thinking the AC is drawing a huge amount of power from the system when I run it, or my battery is done for. Any helpful feedback would be appreciated.

Hey guys Just to describe what I am experiencing. Before I lost my AC, I would occasionally have my blower speed slow down randomly, or the blend doors would move to a different location, or would kick into recirculation. I would have to turn the fan down and back up to get it to come back, but sometimes it wouldn't work. At some point my condenser caught a rock and was leaking, so I replaced it. Worked fine for about 6 months, then suddenly no more cold air. I roll like this for over a year in the texas heat. Not being able to afford to fix it. Then randomly, it came back on! I was happy but didn't know what happened. Then it went off again and hadn't returned. Well since then I have change the compressor, expansion valve, dryer, pressure switch, condenser. Charged it but compressor won't pull vacuum. Clutch won't engage on its own so I have to bypass it at the relay, but still wont pump down, so I suspect the solenoid on the compressor won't engage either, which from what I can tell bypasses the compressor in an unpowered state. I have the suspision that my hvac control module has gone out. My truck is a 2016 gmc sierra 1500 with the 5.3 v8 gas below is all the information I can pull about this. Any assistance would be GREATLY appreciated.

I have a 2014 Silverado 5.3 my ac works great when it’s not really hot or early in the am. But later in the day it has problems when the cooling fan kicks in high speed my ac compressor clutch disengages. And when it kicks but down in speed ac clutch will engage again it will continue to does this up and down routine. What is the problem ?????? Freon is good no leaks works great other then when it’s above about 86 degrees outside. Also the truck is not over heating havnt seen it over 210

hi everyone, ive looked high and low with no luck, so apologies of this is directly cited somewhere. The plastic grooves/housing where the blower motor twists into place under the glove box, are brittle and broken. Therefore, my blower fan will not stay in place. Is that plastic housing or assembly core sold as a stand alone part? Trying to figure out a way to get the blower motor secured without duct tape or something else. thanks!

Hi all! Bought my 2020 Silverado RST almost a year ago (12000km) and this summer started noticing a whirring noise as I accelerate with the AC on, it doesn't happen when the AC is off. Dealership says its normal and its because its under load (been a hot and humid summer), another post here had a couple other people experiencing it but its over a year old so wanted to see if anyone else has/is experiencing it. Did any parts get replaced? Did it help? The dealership said to keep an eye on it and they would replace the compressor if it got worse or if it continued when temps drop but if its normal function then that likely wouldn't help. Won't lie...i'm not impressed with how loud it is considering its a 60k truck.

Trying to determine what is the "normal" max A/C temperature for a given temperature range. In my car, the AC blows at 33.4* when ambient temperature is 76*. The truck blows just a hair over 44* in same ambient temperature, same location, same time, both in the shade. Method of testing: vent speed on low, side vents turned off (test from center console vents), temperature set to "lo" on both dials, recirculation enabled, vent direction on face only. I tested with a digital, instant thermometer rested in the vent for 10 minutes and recorded the lowest temperature and average temperature. I also turn it up to 75 and back down to lo to rule out possibility of a sticking mixture vent. The truck seems like it can never fully cool and it appears the ac is just slightly out of spec. The attached photo is a performance temperature chart for a Honda Accord but should more or less be the standard. The car met the standard, but the truck is on the "high end" of normal. 2018 Sierra 1500, 6.2 SLT with NHT What temperature does yours read at? For those of you who had to have condensers replaced, what is your AC temperature reading now? TIA!

Has anyone experienced a similar issue? I have a 2019 Silverado trail boss and when you turn the fan on, whether it’s ac or heater, there is a noise that is not normal. It comes from the passenger side inside the dash area. It’s not a loud noise and if the stereo is on you won’t hear it. It sounds like the fan motor is off. I wouldn’t bother taking it in if all trucks made the noise but they don’t. I had the dealership take me in another trail boss and there was no sound, just normal wind sound. They changed a bearing saying that was the issue but it is still making the same noise. The second time I brought it in they said they are reporting it to GM. I brought it in today and the service desk worker said it’s “normal”. I asked why the others don’t make the noise and he said it’s “normal”. Obviously not normal or they would all make the same sound. Anyone know what it is??

Hello everyone so I have a 2014 silverado 5.3 ltz here's my problem when I cut my truck off the fans keep running for almost 3 minutes and my ac doesn't work and temperature guage is at 160 can anyone help

I am just starting out to repair the AC on a van I bought from a neighbor and the air conditioning only blows out of the defrost and a little bit out of the floor. The system is charged, the blower fan works on all of the speeds, I just don't know where to start and the internet has nothing that will do me any good for my specific vehicle, which is a 1999 GMC Savana 3500. I was just curious how to resolve this quickly and in the cheapest way possible before I tore apart the dash and got in over my head. Any tips would be greatly appreciated. Thanks.

I have a 2014 GMC Sierra SLT Crewcab, 2 weeks old. I have noticed that when I have the air recirculating in the cabin, outside air closed off, I still am smelling outside air, cigarette smoke from the next car while sitting at a light, bus exhaust, skunk smell. I also have a Buick Enclave ('11) and my old Silvefrado ('03) which did not permit outside air from entering the passenger cabin when the 'recirculate' button was in use. I is almost like the 'door' is not closed completely. Has anyone else experienced this?

2015 chevy 1500.. 3400 miles. A couple of times the heat didn't work. It always did "next time".. the other day I had to take a 3 hour drive.. it didn't work the whole way there...stopped for an hour..headed back still with no heat (it was 42* so it was not pleasant) Took to dealer - they said they cant find anything wrong, of course, and of course the he was working fine. Its only done this a couple of times in the past 2 months now. Anyone experienced anything similar? It blows out air, and it will adjust the fan speed properly (or what I'm guessing WOULD be properly if it was blowing out heat) based on the temp of the cab. Even when taken off of auto and just turned temp to hi and fan speed up, with AC button off, it was still blowing cold air. Any ideas? Could it somehow be user error? (doubtful) Also when the AC button is on, even when its on heat, is the AC really still running? seems dumb that lights always on even when you have the temp high and its blowing heat.