Why does my Chevy Silverado keep blowing hot air?
From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. I would check the charge in the system. You might be just a little low on refrigerant. (Low enough to intermittantly trip the “Low-pressure” switch.)
Why does my AC keep blowing hot air?
Recently when running the AC, it will randomly begin blowing hot air instead of cold. No matter what I try, the only proven way to get cold air to blow again is to shut the engine off, wait around 5 seconds, then crank back up. After doing this everything seems to work fine for a week or so…then the AC starts blowing hot air again.
How much is the AC unit on a Silverado?
The hardest part was the last screw holding up the plastic cover above the center hump. Gonna kick that engineer. The part is $137 on gmpartsdirect. Thanks to their wonderful website, there is no direct link or part number.
From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. I would check the charge in the system. You might be just a little low on refrigerant. (Low enough to intermittantly trip the “Low-pressure” switch.)
Why does my HVAC blow cold air and hot air?
Drivers changed air temperature far more often than they change the mode (defrost, floor heat, dash vents, etc.), so the temperature actuators generally fail first. When that happens, the HVAC system can be stuck on blows cold air or blows hot air. In a dual zone system, you wind up with a blows cold one side, hot on other side condition.
Can a car vent blow cold one side and hot the other?
In a vehicle with dual temperature controls you may encounter a situation where the vent blows cold one side, hot on other side or vice versa.
What to do about AC intermittently blowing hot air?
The permanent solution isn’t very hard or expensive. http://chevroletforum.com/forum/silverado-…lacement-22624/ The temporary fix is to turn the truck off and back on. That usually fixes mine for a few days. I pulled my actuator out the other day to see for myself.
Why does my GMC air conditioner stop working?
For about 5 miles the A/C worked normally till we hit a R/R and the bump made it stop blowing cold air and he was finally convinced. Back to the shop and 30 min later they found the problem. Turned out to be the low pressure switch, (under hood on bottom of small tank) it was corroded and causing a loss of electrical contact.
What to do if your car AC is not working?
You can handle this situation by using the best maintenance tips. Use a charging machine that will pour coolant and make your AC work properly. If the AC still doesn’t work even after using the charging machine, contact the nearest mechanic.
Why does my Chevy Silverado blow hot air?
My 04 silverado starts off cold on both sides then sometimes the driver side vents will blow hot air. when we stop and turn off truck and start it up and it is fine again. Could it be the thermostat for that side not working??? anyone have any answers for this problem?
How does the hot air blow in a GMC Yukon?
A small servo motor that turns hot and cold air valve in the heater box. I pulled the small flat motor off and noticed the shaft was jammed and would not turn when i moved the temperature selector knob from hot to cold.
For about 5 miles the A/C worked normally till we hit a R/R and the bump made it stop blowing cold air and he was finally convinced. Back to the shop and 30 min later they found the problem. Turned out to be the low pressure switch, (under hood on bottom of small tank) it was corroded and causing a loss of electrical contact.
What happens if your AC unit blows cold air?
During operation, the high pressure side of the refrigerant system can reach pressures of over 275 PSI. Use extreme caution when working around the A/C system. Never disconnect or vent the refrigerant to the atmosphere. Refrigerant can cause extreme frost bite or blindness if it comes in contact with your skin or eyes.
What are the symptoms of a bad AC pressure switch?
The most common symptom of a bad AC pressure switch are that you will notice that the AC compressor is cutting on and off rapidly when you are idling your car. These switches between on and off can be noticeable on the engine’s rpm, and you may see or feel fluctuations from it.
Why does my GMC Sierra 1500 blow hot air?
The AC on my 2005… The AC on my 2005 Sierra blows hot air after it has run a while when it is above about 85F. Turnu=ining the AC off and on again has no effect, but turning the whole engine off then restarting after about 30 seconds gets the ac cold again, but only for a few minutes.
What’s the problem with my GMC Sierra AC?
I’ve got a problem I got hot air coming out the vents on the driver side,and cold air on the pass.side that includes when im running the air. Blows cold air on driver’s side and hot air on passenger side. Should heat both sides. when heater is on it will throw heat for a while and then starts to throw cold air out the driver side vents.
Recently when running the AC, it will randomly begin blowing hot air instead of cold. No matter what I try, the only proven way to get cold air to blow again is to shut the engine off, wait around 5 seconds, then crank back up. After doing this everything seems to work fine for a week or so…then the AC starts blowing hot air again.