Noise When I Go Over A Bump
Thread Starter
Safety Car
Joined: Feb 2001
Posts: 4,494
Likes: 8
From: Niceville, FL
Noise When I Go Over A Bump
I hear a squeek in the front when I drive over a bump...is this something that can be fixed? I heard other people have the same thing, plus I noticed it more since its cold here in UTAH....any help would be great... 
Heel & Toe
Joined: Nov 2004
Posts: 18
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Check this out.... To Reduced squeaks, creaks and noises while driving.
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The redesigned Tunnel Reinforcement Plate
http://www.eliteengineeringusa.com/C5Products.html
Burning Brakes
Joined: Jun 2004
Posts: 1,083
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From: I'm not quite middle aged and I only own one gold chain! San Jose CA
I suggest that you cease going over bumps,
Okay I'm sorry...it's late and I just couldn't resist! 
I will feel guilty if I don't offer at least one plausible suggestion. I don't know how old your car is, but I have heard it suggested by numerous car guys to go through and tighten nuts, screws, etc once a year or so just to make sure that things stay buttoned up. Otherwise, some kind of chassis stiffening may help, then again, depending on the source of the problem, it may exascerbate the issue.
Okay I'm sorry...it's late and I just couldn't resist! I will feel guilty if I don't offer at least one plausible suggestion. I don't know how old your car is, but I have heard it suggested by numerous car guys to go through and tighten nuts, screws, etc once a year or so just to make sure that things stay buttoned up. Otherwise, some kind of chassis stiffening may help, then again, depending on the source of the problem, it may exascerbate the issue.
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Your sway bar bushing have worn the paint off the sway bars.. rust has formed on the sway bars and the squeak is coming from the rust rubbing on the dry bushings... the fix is to remove the two front bushings and the two rear bushings.. clean the rust off the bushings and clean the sway bars.. repaint the sway bars, apply silicone grease to the bushings and reinstall. Torque to the proper specs...
front bushing torque 58 N-m 43 ft lbs
rear bushing upper torque 65 N-m 49 ft lbs
rear bushing lower torque 95 N-m 70 ft lbs
front bushing torque 58 N-m 43 ft lbs
rear bushing upper torque 65 N-m 49 ft lbs
rear bushing lower torque 95 N-m 70 ft lbs
Thread Starter
Safety Car
Joined: Feb 2001
Posts: 4,494
Likes: 8
From: Niceville, FL
Originally Posted by Evil-Twin
Your sway bar bushing have worn the paint off the sway bars.. rust has formed on the sway bars and the squeak is coming from the rust rubbing on the dry bushings... the fix is to remove the two front bushings and the two rear bushings.. clean the rust off the bushings and clean the sway bars.. repaint the sway bars, apply silicone grease to the bushings and reinstall. Torque to the proper specs...
front bushing torque 58 N-m 43 ft lbs
rear bushing upper torque 65 N-m 49 ft lbs
rear bushing lower torque 95 N-m 70 ft lbs
front bushing torque 58 N-m 43 ft lbs
rear bushing upper torque 65 N-m 49 ft lbs
rear bushing lower torque 95 N-m 70 ft lbs
Thread Starter
Safety Car
Joined: Feb 2001
Posts: 4,494
Likes: 8
From: Niceville, FL
Originally Posted by eddiep
I had the same "problem". My dealer lubed the sway bar bushings and everything quieted down. 
Evil-Twin's method may be more comprehensive, but what was done to my car did the trick.
Evil-Twin's method may be more comprehensive, but what was done to my car did the trick.
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Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Originally Posted by mdbennes
Do you know what kind of lube they used?
Advanced
Joined: Sep 2004
Posts: 87
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Originally Posted by mdbennes
I hear a squeek in the front when I drive over a bump...is this something that can be fixed? I heard other people have the same thing, plus I noticed it more since its cold here in UTAH....any help would be great...
Hey me too.
I would call it more of a SQUAK over a bump or sharp dip.
My vette is a 99, And I have just noticed it doing this since it's been cold and wet for a month now.
I don't drive it in wet weather but I'm sure humidity works on everything around this part of the world. ( Southeast Texas )
And no I didn't run over a chicken
I have some silcone spray, do you folks think that will do the trick on the sway bar bushing ?
Thanks
Thread Starter
Safety Car
Joined: Feb 2001
Posts: 4,494
Likes: 8
From: Niceville, FL
Thanks EVIL TWIN....sounds like a project for me this weekend or next week....Is it easy to reach the bushings with the car on ramps? Or will it be better to have it on stands?
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Originally Posted by mdbennes
Thanks EVIL TWIN....sounds like a project for me this weekend or next week....Is it easy to reach the bushings with the car on ramps? Or will it be better to have it on stands?
Drifting
Joined: Jan 2001
Posts: 1,347
Likes: 4
From: Slidell La
Squeek
I took mine in under warranty and the rubber pads on the front spring were bad. They were replaced under warranty and the front end squeek and stopped. I still have the rear end squeek, and drives me nuts. I can only hear it on slow speed over bumps. You can bounce the rear end and still hear it. I suspect bushings and the silicon spray I hope will help. The dealer pretty much gave up after the front spring pads and said bring it back some other time and we will find it. 
I guess I will have to crawl under it as I have done for my 64,, 72, ,,, 87 and nnnnnnow the 99 C5.
I guess I will have to crawl under it as I have done for my 64,, 72, ,,, 87 and nnnnnnow the 99 C5.
Thread Starter
Safety Car
Joined: Feb 2001
Posts: 4,494
Likes: 8
From: Niceville, FL
Originally Posted by Evil-Twin
The job is an easy one.. less than an hour...use ramps for the front.. and do the fronts... then back the car up on the ramps for the rear.. just take note as to how the bushing fits in the bushing clamp pocket.
Great...thanks. Sounds like a good job for my father and I to work on when he stays with us next week...
Race Director
Joined: Dec 2002
Posts: 10,233
Likes: 21
From: Baltimore suburbs Maryland
I heard another thing to use from a different make, that is water resistant and non-harmful to rubber is Cornhead Grease from John Deer. Fortunately I live in farm country there is a John Deer dealer 10 min away.
