ShinyNewPenny

Just recently my Civic has started "thumping" very loudly and violently whenever I give it any gas while reversing. The sound reminds me of the way my exhaust sounded when it was installed wrong (was hitting the body in the rear). The sound only exists when I'm accelerating backwards, not when I'm rolling backwards or accelerating forwards what so ever.

Apart from a rear brake job about a month before the thumping, nothing has been really changed/done on the car recently that might have caused this. The only thing I could think of would be a bad rear motor mount, but I honestly have no clue what the problem might be. I tried to check the mount but I couldn't get a good look. This wasn't a gradual problem either, it just started happening outta no where.

Anyone have any clue what the problem might be? It feels like my car is gonna shake itself apart when I reverse.


I suppose some info on the car would help too, heh. '93 Civic Si hatchback, D16Z6 with I/H/E, lowered on Form and Function coilovers.

boxeocampeon

mine does the same thing or even if i role in reverse cus im on a hill and its more when i turn the wheel im not sure why i think its a suspension issue

ShinyNewPenny

ttt

recycled air 90

check under the car for bodies lol

does the car shake or just make a thumping noise...or both?

boxeocampeon

x2 thats what i was thinking a dead body might be stuck under the car

EL Vap133

It can be a lot of things. Check all bolts, etc.

ShinyNewPenny

lol, 90% sure there's no bodies under there. The car both shakes and thumps loudly. I'll see if I can get a video or something tomorrow. It's pretty bad.

What should I check? The problem is only in reverse so would it be the tranny or something?