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9th Gen Corolla/1st Gen Matrix (2003-2008) 9th generation Corolla and 1st generation Matrix discussion.

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Old 06-29-2007, 02:47 PM   #1 (permalink)
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'03 Corolla A/C problem

My 2003 corolla A/C has been working intermittently the past few days. I determined that the clutch wasn't engaging. I played with the MG CLT relay, and it kicked in, but I'm not sure if that was just dumb luck. What are some of the different things that can prevent the relay from engaging the clutch? I put some refridgerant in the other day, but I still haven't taken any pressure readings.(I'm not sure where to take them, and what pressure is normal.) When the A/C is engaged it's nice and cold. I just would like to try and isolate the problem a little more before spending too much money chasing the problem around. A new relay should only be $60, but I'm not 100% sure that's it.

I'm not sure how to jump the relay, so if someone could explain it might help.

Any suggestions would be greatly appreciated.
Jeff
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Old 06-29-2007, 03:01 PM   #2 (permalink)
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Quote:
I put some refridgerant in the other day, but I still haven't taken any pressure readings.(I'm not sure where to take them, and what pressure is normal.)
thats something you absolutely shouldnt do.

Some things that prevent the magnetic clutch from engaging:
1)Contact failure
2)too little pressure
3)too high pressure
4)wiring problem
5)Magnetic clutch relay faulty.
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Old 06-30-2007, 05:50 AM   #3 (permalink)
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Cool

go to http://acsource.com/ forums for best help with a/c:

http://www.acsource.net/acforum/
and ask your questions there..
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Old 11-21-2007, 06:00 PM   #4 (permalink)
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It's probably too late, but I have the same problem, you can use the relay from the horn, it's almost the same(if not the same). I have switched mine with the MG CLT Relay and now the A/C is working fine.I have no horn for now, but I rather have the A/C.
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