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Old 11-27-2004, 04:41   #1 (permalink)
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weird air con knock in ED... suggestions?

I fitted a new belt for the air con today in my ED XR6. Now when I press the button for air con it makes a weird rattling knock sound. I have had a bit of a look and it may be the idler is not tensioned up properly but the belt only moves the 8 or 11mm that the gregory's manual said it should move when about 10kgs of force is place on it. It is definitely the air con compressor or something as when I turn it on it makes the noise and when I turn it off the noise goes away.

The car did not run for ages as I have been overseas, could this have affected the air con system? I have been driving around for about a week and a half now with no problems (besides no air con). The air con works fine when turned on, just makes a weird ratling/knocking sound. It is not a regular knock, but more of an irregular rattle so something may be loose, hence my first thought being the idler.

I don't think this is it (but it may be??? I don't really know), so is there anything else that is part of the air con compressor system that could produce a knock?
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Old 11-28-2004, 03:16   #2 (permalink)
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Re: weird air con knock in ED... suggestions?

Hey, I hav an ED aswell an it does the same thing with the aircon
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Old 11-28-2004, 04:31   #3 (permalink)
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Re: weird air con knock in ED... suggestions?

any ideas, anyone?
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Old 11-29-2004, 14:52   #4 (permalink)
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Re: weird air con knock in ED... suggestions?

i think it's a bearing gone in the air compressor ,or something like that i cant think of the name ,but just take it to a mechanic and ask them
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Old 11-29-2004, 22:45   #5 (permalink)
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Re: weird air con knock in ED... suggestions?

Also have an ED, no "knocks" but a lot of "clicks" when idling. It clicks and idles faster for a little while, then clicks and idles normally, and keeps going back and forth every so often.
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Old 11-29-2004, 23:14   #6 (permalink)
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Re: weird air con knock in ED... suggestions?

sounds like the compressor pulley bearing has shit itself....
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Old 11-30-2004, 03:35   #7 (permalink)
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Re: weird air con knock in ED... suggestions?

Yes definately the compressor Clutch bearing, and they arnt cheap.
:(
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Old 11-30-2004, 04:01   #8 (permalink)
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Re: weird air con knock in ED... suggestions?

yeah as above unfortunately

My first EA's clutch used to spark when i put the air on lol, got that changed real quick
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