1995 SSEi shaking problem - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 07-11-2010, 01:42 PM   #1
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: May 2009
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
stereoxide is on a distinguished road
Default 1995 SSEi shaking problem

My Bonneville shakes violently at around/after 50mph and up while stepping on the gas pedal and accelerating. It stops when I let go of the pedal and immediately step on it again but it'll start shaking again after a while.

It also idles rough but not as bad as the shaking I get when I drive. Any ideas on what it could be?
stereoxide is offline   Reply With Quote
Old 07-11-2010, 05:58 PM   #2
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,649
Thanked 1,001 Times in 777 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

Check and make sure all lug nuts are secure on the front wheels. Then if you can, get underneath and check for CV-shaft play.
Mike is offline   Reply With Quote
Old 07-11-2010, 08:28 PM   #3
Senior Member
True Car Nut
 
Purplehazeir's Avatar
 
Join Date: Sep 2008
Location: Arlington, WA
Posts: 7,979
Thanks: 0
Thanked 1 Time in 1 Post
Purplehazeir is on a distinguished road
Default

Hmmmm...Harmonic Balancer maybe....

When did you have a good tune up done?
Purplehazeir is offline   Reply With Quote
Old 07-11-2010, 09:28 PM   #4
Senior Member
Posts like a Corvette
 
Nighthwk12's Avatar
 
Join Date: Feb 2009
Location: Jersey Shore
Posts: 1,511
Thanks: 0
Thanked 0 Times in 0 Posts
Nighthwk12 is on a distinguished road
Default

sounds like a balencer to me. I would also lift the front end and check for play in the wheels.
do this by lifting the car and support it. Shake the tire at 3 and 9. then shake the tire holding it at 6 and 12
Nighthwk12 is offline   Reply With Quote
Old 07-11-2010, 10:13 PM   #5
Senior Member
True Car Nut
 
rjolly87's Avatar
 
Join Date: Jun 2003
Location: Las Cruces, NM
Posts: 6,857
Thanked 298 Times in 246 Posts
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default

The issues sound related, and would be multiplied when the torque converter is locked up, which happens at usually 48mph. You can confirm this by easing on the gas, and when the car starts shaking, if you lightly touch the brake pedal, just enough to trigger the brake switch, it will instantly get better. When the brakes are engaged, the torque converter unlocks. If you hit the brakes, and the issue remains as it did, but the rpms bump up indicating the torque converter unlocked, then the above suggestions hold true. I believe the issues are one and the same however, and it means tracking down your running rough issue. Could be ignition problems, vacuum leak, etc.
rjolly87 is offline   Reply With Quote
Old 07-12-2010, 03:08 AM   #6
Senior Member
Certified GM nut
 
SignOfZeta's Avatar
 
Join Date: Mar 2005
Location: New Milford, CT
Posts: 2,284
Thanked 16 Times in 13 Posts
SignOfZeta has a spectacular aura aboutSignOfZeta has a spectacular aura about
Default

Quote:
Originally Posted by rjolly87 View Post
The issues sound related, and would be multiplied when the torque converter is locked up, which happens at usually 48mph. You can confirm this by easing on the gas, and when the car starts shaking, if you lightly touch the brake pedal, just enough to trigger the brake switch, it will instantly get better. When the brakes are engaged, the torque converter unlocks. If you hit the brakes, and the issue remains as it did, but the rpms bump up indicating the torque converter unlocked, then the above suggestions hold true. I believe the issues are one and the same however, and it means tracking down your running rough issue. Could be ignition problems, vacuum leak, etc.
A rough idle can be caused by a dirty throttle body (or one of its sensors), vacuum leak, or ignition issue. A rough acceleration can be a problem with the ignition or fuel delivery systems. A rough idle at a constant speed above second gear can be a TCC issue, which is most often a shaking with light surging on the tach.

Everyone'* contributed sound advice thus far. As much as you don't want to hear this, it can be anything I've mentioned, anything they've mentioned, and the suspension. Start narrowing things down. Tightening lug nuts is free. Putting your front end on jackstands is free (if you have jackstands). A good tune-up isn't free, but fairly cheap.

Also, is your check engine light on? If it is, we have a huge step in the right direction.
SignOfZeta is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1995 Bonneville ssei major problem silentfrwy 1992-1999 2 09-05-2004 03:05 AM
1995 Pontiac Bonneville SE vs 1995 Dodge Avenger ES killer_cr80r General GM Chat 30 03-28-2004 04:15 AM
Your TCC lockup shaking your Bonnie? HDvorider2001 1992-1999 2 01-25-2004 05:28 PM
Bonnie Shaking? naykki03 1992-1999 6 01-25-2004 05:23 PM
Hi guys! I'm new but my SSE is not 1997 73,748mi, shaking. Turbo5 1992-1999 7 08-04-2003 10:10 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:28 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.