Did they Build it wrong?
Not a normal air conditioning diagnosis. customer states ac is warm.
come fix your car…
This site uses Akismet to reduce spam. Learn how your comment data is processed.
I grew up on GM vehicles but they've never been that reliable. However I will say despite their problems, back in the day nobody made a better air conditioning system. Apparently those days are over. My family gave up on GM when my Mom's 3 day old '96 Olds broke down on her, stayed in the shop 2 months and GM finally bought it back. Replaced it with a Honda Accord and never looked back. My Dad bought a '96 Ford Ranger shortly after that fiasco and it's still running
Climate Change causes nova heating
Listen to how nice and quiet the shop is today, No blaring radio.
Why would this Sierra be at the Dealership for warranty work. It is definitely still under warranty, is the Dealer a real jerk??? Can you do warranty work and bill GMC?
The dreaded GM junk condenser premature failure
Don’t think the temp dropped below 66°F, was hovering between thereabouts despite the cockpit instrument display reading 71°,
Should be under warrente.
Too much refrigerant is probably just as bad as too little as it probably messes with the systems operation from condenser to heat exchanger?
All Suburbans or Yukon Denalis, we've had 1988, 1994, 2005, and (since May 2021) a 2011 Yukon Denali, in Arizona desert. ALL had AC that got a lot cooler even in our summers than the vehicle Ray had here. Maybe just another example of "cost savings" by manufacturer that backfired.
Hey Ray, you were on the right track with the temp. sensor on that F150 but gave up and ripped the whole dash off. Why didn’t you go to a scrapyard to source a sensor first?
Ray keeps his Therm-O-Meter in a special, heated toolbox drawer.
Ahh the fake Allison pickup 😂😂
What about warrenty coverage
This guy is still using windows 7. Lucky.
You can say what you want about European cars, but in my experience the AC service connectors are mostly pretty easily accessible in those. Or at least that's the case in the models not intended for export to the US. 😝
We are in spec, the customer must have loved hearing that.
My 2018 Subaru Outback 2.5 L can generate 40+ degrees on a 90+ degree hot day. But it has to be on recirculate.
I dont understand why you are getting GM warranty work…explain
Blower set to high speed will not produce the lowest air temperature. The higher air velocity will reduce the amount of time the air is in contact with the evaporator, and increase the output temperature.
I grew up on GM. I worked for GM. I love GM. But they can be such crap vehicles.
Should’nt the truck still be under warranty?!
Weak compressor or expansion valve isn't working correctly. If they are, the air blend door/ recirculate damper could be stuck allowing heat in the duct work when not called for..
Thank you Ray for posting all these repair videos… very informative – but most importantly – lets me know what vehicles NOT to buy!!
Have u come across the Ford Escape a 2013 and newer issue of AC blowing warm air after system has been running for a while?
There is a TSB on this
Factory worker: “More is better than less”
Engineering: “We don’t know what’s wrong” 🤷🏻♂️🤣
Nice job and video like always
Ray your videos are the best auto repair related ones on YouTube. Your camera work is outstanding! You are an outstanding mechanic totally subscribed thank you.
But it was that GM Mexican refrigerant so you need to use more to get the same effect.
GM….
G eneric 🤪
M otors 👍
You should have checked the charge wt in the second vehicle with the customer's vehicle. Could be a scale deviation or error.
I was assigned a wirk truck once and if you turned on the ac the cab quickly became the same temp as the engine it was horrible, boss refused to fix it to
I really like this channel lol. Keep posting content man!
Yep, R134 will actually blow warm if overcharged. If GM had gone with a TXV using a cap tube sensor, the overcharge would not have made any difference.
im amazed how these new trucks got so many problems.
Having A/C problems in a 2020 Savana work van in our company. It the compressor just cycles on a hot start. Clicks on, clicks off, clicks on, clicks off. So naturally the air gets cool, then hot etc as the compressor cycles. Once the vehicle has been running a bit or You actually start driving it, the ac works fine. Any ideas? Very hard to leave it at the dealership while they try to figure it out
Clutch fan is weak. Fan not running right rpms at idle or low speeds.
one day someone will make an A/C system that works properly and never leaks or need refilling like a household fridge which you can buy for £100/$120 . . . .
do these have electric compressors or belt drives
I got so tired of watching him futs with that temperature gauge that I turned the damn thing off.
My 10 year old 4 cylinderToyota Venza can reach mid 40's. GM can't go below mid 50's is pretty bad.
👍
Gollum: Prrrressures
If seems like newer vehicles just don't get as cold as the older ones in the early 2000's. Same refrigerant and I regularly saw duct temps in the mid 40's. I wonder if it is just undersized heat exchangers (IE cheaper) or something like that.
lol. My truck is the opposite. Seems to be cooler at idle/lower RPMS than while driving/higher RPMS.
I see he busted a knuckle that had to hurt
Apparently, you don't know much of anything about an automotive AC system. First, for maximum cooling, you DO TURN ON AC Recirculation, just as your AC system would operate at home or in your case, an apartment, no less. Dumb dumb.
IMO, GM A/C generally sucks. Most GMs I've driven or ridden in can't hold a decent temp at idle. Comfy when cruising though.
Not really an issue on my Fords thankfully. No matter what year, I can sit at idle and freeze the cabin. Honda seems even better.
I also check with the fan speed lowered, on my cars it's always 40-44°, depends on the car and the fan speed.
hmm 2 gmc's newer sound like a lapse in manufacturing