Drivetrain/suspension noise...
Thread Starter
Racer
Joined: Oct 1999
Posts: 372
Likes: 1
From: Santa Fe TN
Drivetrain/suspension noise...
Hi all,
We have a 93 Ruby Coupe, automatic, 2.59 rear. When at highway speed, there is a loud thumping noise, coming seemingly from the entire car, almost like a huge rock in a tire tread. It's in synch with the tire rotation, but it's intermittant. When starting from a stop, it will be a steady BAM BAM BAM, and the car will shake. It will either disappear while the car is moving, or it will be gone after the next stop. That's what is confusing me, the intermittant nature of the noise, and it doesn't sound like any other problem (wheel bearings, u-joints) that I've heard before. The car has 199,000 miles on it, we replaced half-shaft u-joints at about 160,000, drive shaft u-joints at about 180,000. Looking under the car, the half-shaft and drive shaft u-joints seem to be tight. It has Continental Extreme Contact 275/40-17s all the way around.
Any thoughts?
Thanks!
Mark and Jennifer
We have a 93 Ruby Coupe, automatic, 2.59 rear. When at highway speed, there is a loud thumping noise, coming seemingly from the entire car, almost like a huge rock in a tire tread. It's in synch with the tire rotation, but it's intermittant. When starting from a stop, it will be a steady BAM BAM BAM, and the car will shake. It will either disappear while the car is moving, or it will be gone after the next stop. That's what is confusing me, the intermittant nature of the noise, and it doesn't sound like any other problem (wheel bearings, u-joints) that I've heard before. The car has 199,000 miles on it, we replaced half-shaft u-joints at about 160,000, drive shaft u-joints at about 180,000. Looking under the car, the half-shaft and drive shaft u-joints seem to be tight. It has Continental Extreme Contact 275/40-17s all the way around.
Any thoughts?
Thanks!
Mark and Jennifer
Burning Brakes
Joined: Nov 2004
Posts: 1,107
Likes: 0
From: RI
I know there's a balancing weight on the driveshaft. Not sure if it were to fall off, that the out-of-balance would cause you this problem. My next suggestion is to have the 4 tires re-balanced and check for wheel trueness and any lumps in the tread of the tire.
