Rear End Thump Noise

wyldnwoody44 · #1 01-07-2009, 04:44 PM

I recently discovered an odd sound and feeling in my rear end. It seems when im in reverse or forward and my wheel is turned far (as in turning into a parking space or out), my back tires seem to have a thud and a kind of jumpy noise. it happens on both sides depending on which way im turning. My mechanic told my that he believes that a clutch pack is catching and it should be slipping and its common with subarus. He is calling for a flush with a new pan and external filter and refill with dextron 6 synthetic and use trans tune in it. Has anyone else had this problem? and any other solutions as college starts back up monday and my bank account cant afford anything major.

Blacky · #2 01-07-2009, 05:02 PM

Sounds about right, classic transfer clutch binding. If you're lucky that fix should do it.
Try putting the FWD fuse in and see if it stops doing it. If it stops then your mechanic is on the right track.

wyldnwoody44 · #3 01-07-2009, 05:14 PM

So i can drive the car with the fwd fuse? sorry im mechanically not very smart. And is the fwd fuse under the hood

Green1995SVX · #4 01-07-2009, 05:35 PM

I agree that it's probably an issue related to your transfer clutches. I had a similar problem with my 92. SVXFiles did some transfer clutch work to the car, and it made the problem go away. You can diagnose it by putting in the FWD fuse. If the problem goes away, then it's probably related to the transfer clutches, or the Duty Solenoid C (which controls the transfer clutches).

It is not recommended to drive the car for any long distance with the FWD fuse in place. It could cause damage to your transmission - especially the front differential.

Blacky · #5 01-07-2009, 06:36 PM

Quote:

Originally Posted by wyldnwoody44

So i can drive the car with the fwd fuse? sorry im mechanically not very smart. And is the fwd fuse under the hood

Yes you can drive with the fuse in, just don't drive 1,000miles. The FWD fuse is in the underhood fuse box near the battery.

Tim · #6 01-07-2009, 06:50 PM

I drove for a year with a bad transfer clutch. Didn't swap out the trans until after that, but the trans was working perfectly fine. Just be careful not to launch the car hard.

wyldnwoody44 · #7 01-07-2009, 07:27 PM

Do you think that this flush will be a pretty decent fix if it happens to just be a binding clutch, Or does it look like im doomed to have some serious transmission problems?

Green1995SVX · #8 01-07-2009, 07:51 PM

Quote:

Originally Posted by wyldnwoody44

Do you think that this flush will be a pretty decent fix if it happens to just be a binding clutch, Or does it look like im doomed to have some serious transmission problems?

It's possible, but unlikely, that a transmission flush will solve your problem. Most AWD transfer issues are usually not major problems. Most can be solved without removing the transmission, and can be done pretty quickly by someone who knows these cars.