A day later I used it and noticed my A/C was not blowing cold?

SHANETAYLOR337

MEMBER
2002 CHEVROLET TAHOE
5.8L
V8
2WD
AUTOMATIC
280,000 MILES

I have the vehicle listed above that runs great and I baby every aspect best I can. I returned home a couple days ago and the A/C was working fine. A day later I used it and noticed my A/C wasn't blowing cold. I have in recent years changed out compressor and orifice tube. I vacuum line, no leaks and filled it with proper freon levels and have had no issues. Heater works, both hot and cold blow good just no cold. I have checked the belt and files with no problem. What steps do I take to troubleshoot?

5 Replies

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

With the A/C system on can you lift the hood and use a flashlight to see if the compressor clutch is turning? If not, this will be the problem, and you may be low on refrigerant. This video is great for this kind of problem:

https://youtu.be/4UjfQKvrB6Y?si=u-2DUWe9UNKlvmpk

We need more information to help you. Please upload pictures or videos in your response of any problems so we can see what to help you with.

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Tuesday, September 24th, 2024 AT 2:41 PM

SHANETAYLOR337

MEMBER
14 POSTS

Thanks for the advice, guys. I checked the compressor and sure enough my clutch isn't engaging. My refrigerant levels are good so I think with your help I've solved the problem. I'm going to order a clutch and intend on doing the install. Is there any certain steps or tools I will need to perform the job. And thanks for the insight. Every time I've come to 2CarPros my problems get resolved. Very Professional!

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Thursday, September 26th, 2024 AT 10:10 AM

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

Thank you for your comments :) we try to do our best. Here is how to change out the compressor clutch and coil to help fix the problem, but to be sure the clutch is getting power with the system on with a good ground correct? This guide can help:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the images (below). Let us know what you find.

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Thursday, September 26th, 2024 AT 11:49 AM

SHANETAYLOR337

MEMBER
14 POSTS

Thanks Mr. Ken. Good looking out. It may be a few days before I change the clutch but the follow up info you provided will definitely be a great help.

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Monday, September 30th, 2024 AT 10:28 AM

KEN L