A/C noises
07-19-2008, 08:01 PM
#1
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Join Date: Jan 2008
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Posts: 32
A/C noises
About two weeks ago I started to notice that when I turn on my a/c there is a loud thump. It's not a horrible sound but annoying none the less. Any ideas whats causing it?If this is a big sign of a big problem I just wanna start as soon as I can.
07-20-2008, 06:46 AM
#2
4th Gear Member
Join Date: Oct 2006
Location: Durham, NC
Posts: 1,541
RE: A/C noises
Is it inside the car or out? Does it happen repeatedly or not? Have you noticed a change in the a/c temperature? A little more information would help, but taking a shot in the dark, your having some kind of belt slippage.
07-20-2008, 08:53 AM
#3
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RE: A/C noises
It seems to be just on the other side of the dash, closest to the engine. And it seems to only happen when I turn the a/c on right afteri first start the car, and it just happens once.If I turn the air on after Ive been driving it doesnt usually do it. And theres no change in temperature or anything like that.
07-20-2008, 10:33 AM
#4
6th Gear Member
Join Date: Feb 2006
Location: Virginia
Posts: 11,786
RE: A/C noises
If it was an old car then then i'd say it was the vacuum pulling the air door shut but on our cars the only thing I can think of that would possibly make a thunk sound would be the compressor clutch lost it's bushings. But, that's more of a off/on clicking sound.
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