Hello I have a 2003 Chevy Tahoe with the 5.3. Lately I have been having problems with the A/C. I will turn it on to the lowest temp on the dial. It will start blowing out cold air. But then a couple of minutes later it will start blowing warm/hot air out. I changed the a/c switch next to the accumulator and I just changed the a/c refrigerant pressure sensor that is on the A/C line going to the A/C Compressor. It is till doing the same thing. Could it be another sensor or a bad cable somewhere? Please help. Thank you.
2003 Tahoe A/C wont turn on
- Thread starter thebro55
- Start date
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915_Tahoe
Your GM Parts Specialist
could be the resistor under the dash, those tend to burn out.
Ok. Will check it out. Thank you. One more thing, I have noticed that when I rev up the engine a bit a few minutes later the a/c starts to be cold again. Do you think that the resistor could cause that?
915_Tahoe
Your GM Parts Specialist
no, same happens to mine just replaced my comp. a few months back and when i'm at a stop the cold drops temp but when back on throttle it increases. that should be normal, does this happen to all speeds or just low.
It happens at all speeds
Hey guys, so I fixed the problem. Turns out it was the clutch on the compressor. The air gap needed to be closed a bit more and that is why it wasn't engaging. Removing the compressor was a huge pain, it was almost as bad as taking out the a/c compressor on my '04 6.0. The good thing is it is fixed and I learned that you don't need to take out the compressor to remove the clutch. Anyway, thanks.
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