A/C Clutch Doesn't Engage - What Do I Replace?
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Mountain Pass
Joined: Apr 2022
Posts: 100
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A/C Clutch Doesn't Engage - What Do I Replace?
Recently my A/C hasn't been engaging, so I did some diagnostics this morning with the help of Scotty Kilmer & FordTechMakuloco, and here's what I discovered. I have pressure in the system; about 70psi on the low side, 75 psi on the high side with the engine running and A/C turned on. I ran a key on, engine off test, and the test passed, but I couldn't feel the clutch engaging at all while the test was running. Also, looking at the engine running with the A/C on and off, I don't see any difference in the clutch plate; it's not coming on.
My conclusion is that the clutch is shot. I think I'd just replace the whole compressor, as the truck is a 98 with the 4.6, and it's not much more expensive to do the whole thing compared to just the clutch.
My question is, should I go OEM or aftermarket, and is there anything besides the compressor I need to replace? I was seeing some people online saying that everything in the system needs to be replaced at once...
Any input appreciated!
My conclusion is that the clutch is shot. I think I'd just replace the whole compressor, as the truck is a 98 with the 4.6, and it's not much more expensive to do the whole thing compared to just the clutch.
My question is, should I go OEM or aftermarket, and is there anything besides the compressor I need to replace? I was seeing some people online saying that everything in the system needs to be replaced at once...
Any input appreciated!
Thread Starter
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Mountain Pass
Joined: Apr 2022
Posts: 100
Likes: 11
I only had one spacer, and with it removed the clutch dragged even when disengaged, so I used some aluminum siding stock to make a thinner washer, and now the A/C blows cold again.
Thank you very much.
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