Drive Train Rubbing Noise on Acceleration

pastorbud · Post by **pastorbud** » 05 Apr 2013, 17:29

My 1994 940 Wagon, non-turbo, has 258K miles. There is a rubbing sound that comes from the drivetrain when I am accelerating or going up hill. It becomes more pronounced when I have the back-jump seats up.

I've already replaced the u-joints and center bearing on the driveshaft. It may be a little quieter, but it is still there.

It sounds like it's coming from the rear-end. Any ideas for what to check for next?

Post by **billofdurham** » 06 Apr 2013, 12:35

It becomes more pronounced when I have the back-jump seats up.

When those seats are down they become a very efficient sound deadening material.

There are many possibilities to be considered in this type of noise - not all relating to the drive train.

The attached shows some of the things to be considered before tearing the drive train apart:

: untitled.jpg (41.43 KiB) Viewed 1068 times

Bill.

pastorbud · Post by **pastorbud** » 06 Apr 2013, 12:41

Well, it does need exhaust work, so I'll try that first.

Post by **98T5** » 08 Apr 2013, 06:55

When was the last time the diffe fluid was changed?

pastorbud · Post by **pastorbud** » 08 Apr 2013, 18:31

Differential fluid is also on my list. I just bought the car a few weeks ago, so....

I did use it to carry some teenagers from the church youth group last Friday. They all wanted to ride in the rear-racing pair of seats in back!

pastorbud · Post by **pastorbud** » 13 Apr 2013, 17:46

Kirby J nailed it. Motor/Transmission mount was shot. I replaced it today and it is a much more civilized-sounding little beastie. Still gonna do the differential fluid. (Oh, and the clicking noise referenced in another post was a bad center-bearing... the new one.... right outa the box. Not my happiest experience in parts-buying, but they took it back and exchanged it for a more durable brand.)

Post by **billofdurham** » 14 Apr 2013, 12:25

Thank you for the update.

Bill.