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Squeek In Suspension

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Old Sep 1, 2010 | 02:22 PM
  #1  
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Default Squeek In Suspension

Im test driving a 99 Coupe with 79k miles on it. The car is definately making a squeek in the suspension you can hear at 30-35 mph. It does it fairly constantly following the undulations (not pot holes) in the road. I took the car to a high school parking lot and did about 20 turns lock to lock left and then right. Sounded normal. Theres no squeeks in normal failrly hard cornering both left and right. The squeeks come just through normal straight ahead driving. The car has the electronically adjusted from the cockpit shocks.

What could this be? The dealer went over the car and replaced things like the battery, drive belt and tensioneer. Ive asked to see the car tomorrow on a lift. What should I look far in regards to the squeek? Anything else to check while Im there?


Thanks!
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Old Sep 1, 2010 | 02:56 PM
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Originally Posted by bronsin
Im test driving a 99 Coupe with 79k miles on it. The car is definately making a squeek in the suspension you can hear at 30-35 mph. It does it fairly constantly following the undulations (not pot holes) in the road. I took the car to a high school parking lot and did about 20 turns lock to lock left and then right. Sounded normal. Theres no squeeks in normal failrly hard cornering both left and right. The squeeks come just through normal straight ahead driving. The car has the electronically adjusted from the cockpit shocks.

What could this be? The dealer went over the car and replaced things like the battery, drive belt and tensioneer. Ive asked to see the car tomorrow on a lift. What should I look far in regards to the squeek? Anything else to check while Im there?


Thanks!
Mine does too..I think it's the bushings .Haven't had it on a rack yet.
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Old Sep 1, 2010 | 03:01 PM
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Exhaust hanger bushing.
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Old Sep 1, 2010 | 07:47 PM
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Originally Posted by MagRedConv
Exhaust hanger bushing.
No, suspension bushings
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Old Sep 2, 2010 | 06:36 AM
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On the rack a tech pushed my front end up by hand and we found a squeaking F45 shock...............GMPP replaced them both
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Old Sep 2, 2010 | 07:09 AM
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Originally Posted by rich goepfrich
No, suspension bushings
Had a squeak that sounded like a cricket about two years ago, it was coming from the rear. After going over the suspension 100 or so times it turned out to be the exhaust hanger bushing. Might as well check it out.
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Old Sep 2, 2010 | 11:09 AM
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Definitely check your exhaust hangers as well as your suspension bushings. If you do have them replace the bushings make sure you tell them to put polyurethane ones in or the problem will come back. Those cheap rubber bushings dry out and start creaking and groaning.
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Old Sep 2, 2010 | 01:48 PM
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If it happens on speed bumps or similar, in a straight line, it could be just sway bar bushings.
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Old Sep 3, 2010 | 09:17 AM
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Thanks! Willcheck it out!
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Old Sep 3, 2010 | 03:51 PM
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I've had squeaking come from the upper rear shock tower bushings. Drove me nuts. It would squeek in an oscillating manor.
This was on Koni FSD shocks. Pulled them apart, cleaned and lubed them.
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