I just bought a 96 328IS and the only problem is with the A/C.
When I'm not running the A/C everything is quiet and sounds great. When I turn on the A/C I can hear something that sounds more like a rattle.
(I know what bearings sound like when they go bad.)
Anyone have any ideas about this? Blwer motor was just replaced before I bought it.
I was talking to my wifes step father and he told me to put soapy water on the belts.
If that doesn't work then look to the tensioner and idoler.
Lastly the compressor.
As soon as I get back to KS I will try and see if it works.
I don't know for sure if that will work. I've had them all replaced and I get the compressor sound every time the A/C switches on, and from reading the other posts, it sounds like it is common. Every car, obviously, will make noise when the A/C switches on, but if it is obviously louder than it should be, take it tothe dealership for a quick quote. They shouldn't cost anything.
Yeah, mine is loud outside the car, kind of hiss, no rattles though. The rattle could simply be a heat shield which is loose. When the air is on, the engine tends to shake more at idle. Does it rattle at 1000 RPM or more? I don't think mine is cooling very well at this point, but haven't checked the coolant yet.
I'm not sure if my A/C runs smoother at higher RPM.
I'm currently on vacation in Oregon. I will check on Sunday when I get back into town.
If I bought the part, how much would it cost to have a local shop swap out the old part and install the new one?
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