Skip the auto shop - Our mechanics make house calls

Q: My A/C is not blowing cold or at a consistent pressure, sometimes when it is on high it is barely blowing,

asked by on

Sometimes when it is on high, it is barely blowing out and it is not cold. Sometimes the A/C light will stay lit after I turn it off and then when I try to turn it back on it doesn't work at all....or the light will go off when I turn it off and then when I try to turn it back on, it will blow lightly and the light will not come back on...But when it is running on high it NEVER get cold, only blows barely cool and Even that will fluctuate between cool and warm as I am driving. I have had the compressor replaced twice and still it doesn't work right. I am getting tired of dumping money into this truck.

My car has 198000 miles.
My car has an automatic transmission.

Hello. Firstly, I would check the actual A/C switch itself, with the A/C light on it. If that switch is bad the entire A/C system will not work. If the switch is okay then I would check the pressure sensors, and the system for any leaks.

If you feel like you need help with these checks, feel free to contact a certified mechanic who can diagnose your A/C system and fix it accordingly.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • My A/C is not blowing cold or at a consistent pressure, sometimes when it is on high it is barely blowing,

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: 94 to 96 V10 swap, what needs to be changed?

This is not a simple question since the engines are a couple years apart. Each and every sensor and injector may be different. Just by looking at a wiring diagram the two engines are very different. You may have to...

Q: Car sounds strange when you have your foot on the gas above 30 mph

Hello there, it sounds like you may have a differential issue going on. You did not mention if, when you put the differential cover back on, if you added fluid to bring it back up to specs. If the differential...

Q: What is making my car shut off and smoke coming from my oil cap?

The inner workings of the engine get very hot during operation especially is the vehicle beings to overheat. The smoke you are seeing come the oil cap may be fumes from the hot oil circulating through the engine. If the...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...