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  1. 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
  2. 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!
  3. 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 i
  4. 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 temper
  5. 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.
  6. 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
  7. 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.
  8. 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?
  9. 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
  10. Getting ready to replace my A/C compressor and some other parts, was wondering if you guys have any tips or tricks on to replacing the unit. My truck has never had AC since i bought it in 2015, i figured since i have small children it has to be done. i will be doing all the work at my house, no need to pay thousands of dollars for a shop to install.
  11. I have a 2006 GMC Sierra 1500 4x4. A/c has been out for over 2 years had a bad compressor never got around to fixing it. Today I replaced the compressor, condenser, accumulator, orifice tube, and flushed all lines. Took it up to my buddy at the dealership and we charged it up. Put it under vacuum for a bit and no leaks. Drove home about 12 miles no problems blew ice cold. Left to go to the store about 2 hours later started it up the ac button was on but clutch wasn’t engaged and ac blowing warm. Turned the button off then back on clutch engaged and blew ice cold. About 10-15 seconds clutch dis
  12. The air conditioning compressor failed on my 2015 Silverado a little after a year of buying it new. I just turned it on again for the first time after winter and nothing, it doesnt even sound like my compressor is engaging. The heat works great, no ac at all. I really enjoy my truck and am a big Chevy fan, but the expensive ac repairs are unacceptable. Are ac issues a common Silverado problem?
  13. Highway speeds in recirculation mode I hear a whistle in my 2019 Silverado WT. Turn recirculation off and it goes away, turn it back on and the whistle is back. Anyone else?
  14. This is for general information, and documentation, if others have the same or similar problem(s) with their Air Conditioning. So, my AC conked out late-day on a 90+ degree May 26, on a 2017 GMC Sierra 2500HD Crew Cab, 6.0L, bought 8/31/2017 (2.5 years old) and almost 55,000 miles (highway mostly). Thought it might be OK the next day, but, no, the compressor was 'screaming'. It took a week to get it into the GMC dealership on Friday, June 5th. Tech diagnosed a leak at the condenser, leak at a hose fitting, and malfunctioning compressor. The compressor, when the AC is off, freewhe
  15. I am having some trouble getting my AC to cool. Checked the freon and looked like it needed a bit, but when I put only a tiny bit in, the psi went completely into danger zone. The compressor seems to be kicking on fine. When I get up to around 60mph, it cools off more, but today only to 70 degrees. It was 104 here today though. Vents seem to be blowing fine. Any suggestions on what could be going on?
  16. 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 bl
  17. Hey all. I bought another ride and it came with some HVAC issues . I’m not very good with wiring related trouble shooting so I need your help. Its a 2002 suburban with the base hvac. No digital display and no dual climate. The issues *hot to cold switch doesn’t work *vent change doesn’t work (blows out of front vents only) [The Fan speed knob works fine And all fuses are good] After reading up on the common actuator problems, I decided to try the relearn/calibration of the actuators. This literally did nothing and the part that has me stumped is t
  18. Hey everyone, As the title states, I have a 2004 Suburban, 1500 with the 5.3L and it's a 4x4. The AC keeps blowing the 10A fuse. Backstory: A few weeks back the family and I were driving a few hours away in the car. I stopped halfway(but didn't turn off the car) to fill up with gas and grab snacks. When I came back in I noticed the AC wasn't cold, but all the blowers were going and the light was on the dash. I popped the hood and noticed the compressor wasn't going, so I checked the fuses and found that 10amp AC fuse was blown. I replaced it with a 15 amp(only one
  19. I have a 2003 Suburban Z71 that I just converted to electric fans. I used a factory wiring harness that I found on ebay, and the fans turn on when the temp hits 190. The truck was tuned by a popular tuner, but the fans will not kick on with the A/C compressor. I have wired in both wires to the pcm connectors. I cannot for the life of me get it to turn on with the A/C compressor. Could it be a bad relay? Could my 2003, not be able to control the fans when the A/C kicks on. I have fried my compressor, and would like to get this figured out before spending money on another. Does the tuner
  20. 2009 Avalanche 1500 - Kinda odd - the compressor never turns on when the 'fresh air' light is on., Pressing the recirc kicks on the compressor. Doesn't get really cold though. low side at about 45, high side at 195. Wondering if I have more than 1 issue. Lines get cold, seem fine. Lots of condensation - when sitting in humid conditions plenty of water coming off the lines. Plenty of air, just not ice cold, only when in recirc mode though. Wondering if maybe blend doors are partially open so not doing a full recirc. Driver and passenger side are both the same temp though. Any ideas?
  21. 2018 GMC 2500 - I haven’t driven the truck in two weeks. Got in this morning and the AC was blowing hot air in the full “Auto” setting at 67 degs. Adjusted it down to “Lo” and no change. Put it in manual mode, front vent and high fan speed and it was so cold it fogged up the windows. Any ideas? Dealer had no clue and said they haven’t had that issue before. Thanks in advance.
  22. Highway speeds in recirculation mode I hear a whistle in my 2019 Silverado WT. Turn recirculation off and it goes away, turn it back on and the whistle is back. Anyone else?
  23. Good Evening all. apologize for the novel but bear with me...I need a hand troubleshooting before the local dealer takes me to sizzlers. 2006 GMC Sierra 1500. Dual manual Climate controls. Crew Cab. 5.3 Liter. I have an issue with the air conditioning ceasing to cool while driving after about 20 minutes (what seems). The only way I can get the truck to start cooling again (compressor to re-engage) is if I restart the vehicle ( or if I plug in the OBDII Code tester, more on that later). I have taken the vehicle in for service twice. Once to check the refrigerant level which w
  24. Good afternoon guys, So the AC compressor clutch on my 2015 Silverado 1500 LT, with the 5.3L V8 Flex engine just seized and snapped the belt. Time for some repairs. As I am out of warranty I was hoping that you guys could give me some assistance on the parts that need to be changed so I get this right the first time. By the image below (from GM Parts Direct), what number parts should have be ordering to complete this repair successfully the first time. I know I need #19 (Compressor) and #1 (Condenser assy). What other parts do I need? Also, I'm
  25. Hello All, 2014 Silvy and no AC, I have read all this forum seems to offer. My system is so low I couldn't just get dye in to confirm the leak, compressor wouldnt kick on. Im going to pull a vacuum to confirm the leak, then charge it that way since the vacuum should get me a jump start on getting the system to take refrigerant. Then find the dye with a light, I suspect condenser, but want to confirm before buying the part. Question for those of you who have done this. Did you add oil on this initial charge to get dye in, to protect the compressor? Or did you only add oi
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