Author Topic: Violent Shaking in Reverse (Read 6054 times)

Chalino · « **on:** February 24, 2010, 12:30:19 PM »

Everytime I put the car in reverse, it seems that something in the driveline starts shaking extremely hard. Does anyone have this issue?

DesktopDave · « **Reply #1 on:** February 24, 2010, 03:51:28 PM »

How old are your tranny mounts and guibo?

1991 E30 M42 · « **Reply #2 on:** February 24, 2010, 04:35:15 PM »

your not supposed to floor it in reverse

Chalino · « **Reply #3 on:** February 24, 2010, 05:13:17 PM »

Guibo is about 2 months old; tranny mounts look a little tired...could that be the culprit?

Chalino · « **Reply #4 on:** February 24, 2010, 05:13:58 PM »

Quote from: 1991 E30 M42;88320

your not supposed to floor it in reverse

lol the fucking thing would fall apart if i ever were to floor it in reverse.

DesktopDave · « **Reply #5 on:** February 24, 2010, 09:36:35 PM »

Check your rear subframe and diff bushings too. Worn transmission/engine/diff mounts can do all sorts of odd things.

Ernest · « **Reply #6 on:** February 28, 2010, 01:33:13 PM »

Your driveshaft might need a rebuild. Is there red rust around the U-joints?

Chalino · « **Reply #7 on:** February 28, 2010, 01:48:39 PM »

Quote from: Ernest;88555

Your driveshaft might need a rebuild. Is there red rust around the U-joints?

Negative, it looks pretty good. CSB was also repaced when I did the guibo as well.

Choking Hazard · « **Reply #8 on:** March 04, 2010, 05:50:09 PM »

Are the Transmission mounts OK?

Chalino · « **Reply #9 on:** March 04, 2010, 07:13:23 PM »

Quote from: Choking Hazard;88878

Are the Transmission mounts OK?

Nope, one of them is split in half while the other is close. Of course I'm going to replace them but I was wondering if there were other people here with the same issue or if they know what causes it.

The differential mount looks good but the rear swaybar bushings look shot. Dunno if that has anything to do with it...

mmkale · « **Reply #10 on:** May 23, 2010, 10:58:53 PM »

i changed the differential bushing and it improved some, although the new bushing was a two piece poly affair and i don't like the fit. i'll go back to stock one of these days. I've changed motor mounts, new driveshaft, guibo, csb, subframe and trailing arm bushings also. transmission bushings look ok. haven't looked at the shock mounts yet but they're next along with the swaybar. i will let you know if i ever get it. how about you? have you figured it out yet?

SimplyDope · « **Reply #11 on:** August 18, 2010, 07:10:21 PM »

Wondering what the outcome was of this. Having the same problem. Sometimes it starts to shake violently in reverse, and in first after lots of clutch-in and clutch-outs in traffic.

Only seems to happen once in a while.

mmkale · « **Reply #12 on:** August 19, 2010, 06:43:05 PM »

well, you're the third person who has a car with this problem. I did the rear shock mounts but the shuddering, juddering problem persists. only happens when starting out in reverse or first with light application of gas. if i give it more throttle when starting out it doesn't happen. Lately i've been thinking it may be in the differential or axle shafts. but, then again, what do i know?

dkbmxer002 · « **Reply #13 on:** August 19, 2010, 06:55:42 PM »

mine did that when the rear blew.

DesktopDave · « **Reply #14 on:** August 19, 2010, 09:20:11 PM »

^^^bmx'er...not the usual collection of cars...seems most people decide their poison early & stick with it...how do you decide what to ride?

Back to the trouble:
I wonder if it's a clutch-related problem? Maybe some air in the lines or a tired slave isn't pulling the pressure plate off the clutch plate? Or they're sticking together? That would suck to check though. I hate pulling transmissions.