Why does my GMC air conditioner stop working?

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 when your car AC won’t work?

Thanks ASTE25, Today I replaced the orffice tube, drier bottle, and flushed all lines including condenser, and evaporator. Didn’t see anything in the orffice tube upon replacing it. Recharged, cooled great for a while. On my way home, starting getting warm again, turned ac off for 10 mins, turned back on, cooled for 5-10 min then back to warm air.

How does the AC work in a Chevy truck?

Recharged, cooled great for a while. On my way home, starting getting warm again, turned ac off for 10 mins, turned back on, cooled for 5-10 min then back to warm air. Compressor???? It’s not making any chattering sound or anything obvious.

Why does my GMC Sierra suddenly stop running?

Truck suddenly stops running, acting like it’s out of fuel. There is fuel in the gas tank and, I can hear the fuel pump when I turn the ignition on. Is there a fuse, or relay that is maybe causing this to happen?

When did my GMC Sierra air conditioner stop working?

I had a 2001 GMC Sierra that did this when truck was less the one year old (summer of 2001 is when it was). The dealer had the truck in the shop idling for a long time and the A/C worked perfectly. I told them to take it for a ride and see. So the service manager in an effort to convince me nothing was wrong went for a ride with me driving.

Why is the AC not working on my Chevy truck?

Drove for 15 miles, come back, no resistance on the fan clutch, which I’m assuming if it’s not drawing enough air across the condensor, it will cause high pressure side readings and eventually kick the compressor off. I’m gonna change it today, stay tuned.

Thanks ASTE25, Today I replaced the orffice tube, drier bottle, and flushed all lines including condenser, and evaporator. Didn’t see anything in the orffice tube upon replacing it. Recharged, cooled great for a while. On my way home, starting getting warm again, turned ac off for 10 mins, turned back on, cooled for 5-10 min then back to warm air.

Why does my GMC Sierra 1500 not work?

While there are a variety of reasons your GMC Sierra 1500 air conditioning won’t work, the most common 3 are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. What will be the outcome of an air conditioning system diagnosis?

Why does my car AC blow cold air on one side?

If the car AC blows cold air on one side and hot on the other, there are a few different causes but it’s likely the blend door actuator, also known as the temperature blend door actuator or vent mode door actuator

What to do if your air conditioner is blowing cold air on one side?

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 temperature blend door actuator.

Why does my 2005 Tahoe blow hot air?

My 2005 Tahoe hava AC giving hot air problem. AC would suddenly blow hot air just on the driver’s side while the passenger side still blew cold. The only way to correct it was to turn the car off and back on and then it would immediately start blowing cold again. This happens intermitently.

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.

Why does the driver side blow hot air while passenger cold?

Driver cold Passenger hot Called my dealer and they said “Most likely its the door actuator, i have 15 in stock and sold 23 this year”.

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.)

How can I get my AC to blow hot or cold?

Turn on your A/C to the highest blower setting and let it run 5 minutes, then dial up the heat leaving the blower in highest position for five minutes. this should resent your actuator to correctly blow hot or cold. ..that’s one way to fix it.

Why is my car’s AC compressor not working?

Yes, it is easy to blame a mechanical system but your car’s compressor system is engaged by the clutch and that, in turn, is driven by the ECU (electronic control unit) for the air conditioner/heating system. Why would this system fail? It could be temperature related.

Are there two a / C units in a suburban?

Now comes the harder part, Suburbans have two A/C systems, one for the front and one for the back passengers. Only one compressor, but two exchangers. The rear unit is blowing good cool air but the front unit is blowing hot air, like the selector switch is in the hot mode.

When is the a / C compressor supposed to run?

The compressor is supposed to run during defrost. It pulls moisture out of the air before it hits the windshield. Dryer air = faster defrost. Jus lil heads up, im sure you know already but thats a closed system… Low freon = leak… Tho it could be small My 2000 was doing the same thing.

Yes, it is easy to blame a mechanical system but your car’s compressor system is engaged by the clutch and that, in turn, is driven by the ECU (electronic control unit) for the air conditioner/heating system. Why would this system fail? It could be temperature related.

What to do if your a / C compressor turns on and off?

Here is a video of what its doing and any help would be amazing. Thanks in advance! Given the age of the truck, I’d put my money on it being low in freon. Buy or borrow a gauge ,or get the $40 recharge kit from a local auto parts store. Check to see if the pressure is in range before adding any freon. Good luck, keep us posted. So problem fixed.

Where is the AC switch on the back of the compressor?

To install a switch now, you will have to evacuate the system, install the switch and than recharge it. By the way, my online database is showing that the 97’s high pressure cut out switch is located on the compressor and the low pressure switch is on the accumulator.

What happens when a pressure switch fails on an AC compressor?

3. Compressor not coming on. As the pressure switches control the on/off function of the AC compressor, a switch failure can prevent the AC compressor from functioning at all. The compressor is what pumps refrigerant through the entire system. If it is not functioning, then the system can not operate, and will be unable to produce cold air.

Why does my air conditioner only work intermittently?

Adjusted A/C and The catalytic converter may be getting overheated and turning cherry red, causing the hot floor and burning smell. The engine may be running too rich which can cause this problem as well. Also, towing the trailer can overheat the transmission….

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 the a / C go on and off on my Altima?

03 Altima 3.5. Since new, A/C has arbitrarily turned itself on and off for no apparent reason. When I turn on the A/C, sometimes it blows cool, dry air, sometimes not.

How can you tell when your a / C unit stops working?

On a humid day you can tell almost immediately when the a/c unit stops working. If it’s raining out, the the a/c quits, the windows fog up immediately. It happens with the a/c button on, or when the defroster is on, and doesn’t matter if the recirculate button or a/c max is on or off.

Why does my AC go off at high RPM?

The only way the AC should cycle off is if you have climate control, or if the engine speed rises past a specific point, (high RPM’s) and the compressor clutch disengages to prevent to much pressure in the compressor which would shorten it’s life. There must be a problem. Click to expand…

Why is my car AC fan not working?

Another reason why your car AC fan is not working could be due to your cabin air filter. Cabin air filters serve as a filter to the outside air coming into your car to make sure it is clean and not filled with contaminants. However, if this air filter isn’t changed,…

Why is the a / C not working on my Nissan?

The IPDM has been upgraded to the new one (apparently the clutch relay is part of the IPDM itself, it doesn’t have a replaceable relay, you have to replace the whole assembly). All fuses in the engine compartment and inside the cabin are good. 4. If you run power straight to the clutch the A/C runs cold all day long.

Why does my AC only work when I Am driving?

Your AC only working while you are driving might have to do with a low refrigerant level, or it may be an indication that your electric fans are not turning on. Try checking the fuse and relays for your fans to make sure they are turning on when you turn the AC on. My AC was working fine til today I just started my car an the AC just shut off.

What are the symptoms of a bad cooling fan relay?

1. Engine running hot One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly.

Why does my AC keep turning on and off?

Why does my AC unit keep turning on and off? If your air conditioner keeps turning on and off your AC system is most likely short cycling . An AC system may turn on and off repeatedly due to dirty, broken, or failing parts or for various other mechanical or electrical reasons.

What to do if your air conditioner stops working?

If you find that several AC appliances at once stop working, or if AC appliances quit working but the air conditioner keeps going, suspect a Ground Fault Indicator. If the GFI detects a problem, the GFI-equipped receptacle will shut itself off, often along with several other “slave” receptacles.

How often does your AC turn on and off?

Depending on indoor and outdoor conditions, this could mean that your system turns on and off every 5 to 10 minutes. An air conditioner that is switching on and off repeatedly is bad for both homeowners and your AC system.