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Old 02-10-2003, 09:34 PM
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artpb artpb is offline
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Join Date: Dec 2002
Location: Buffalo, NY
Posts: 87
It's making noise because it's on the way out, low on freon or the belt needs to be adjusted. A loose belt will result in not enough pressure build-up for proper operation and could mislead you. They kind of sound like they have a bunch of large nuts and bolts rattleing around inside. Especially at idle.

So I would snug up the belt first. If the problem persists, have the system checked for leaks when adding freon. Then go for the compressor. Sounds like you may have a hose leak. If so now is the time to replace them all. If there is any good news here it is that your compressor with a new clutch is probably the least expensive of all to purchase. If it's bad - buy new as already mentioned.
Art Bourget

1983 300SD
1st In Class - Starfest Concours 2004
1st In Class - StarTrack Concours 2003
1983 300TDT
1985 300D

MBCA - Niagara Section
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