Shuddering 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.

Thread Tools Search this Thread
Old 08-19-2007, 01:52 AM   #1
Junior Member
Thread Starter
Join Date: Jun 2006
Location: Kentwood, MI
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
vjoankay is on a distinguished road
Default Shuddering problem

I just want to take a moment to thank all of you for all the helpful posts on different problems. Every time I have had a problem, I haven't needed to post becaue someone else already has and I found my answer. You folks are good!! All have been right so far.
My current problem is shuddering at low RPM, especially when gear shifts at around 40-50 mph. I suspected a plug/wire problem, but no, my handyman stepson said fluids (he'* just learning to fix cars). So, he checked 'em, tranny fluid low, put more in but checked the fluid level while car was in Park on a very slight incline. I thought you had to have it on a level surface and in neutral. At least we agreed that the engine had to be running. Anyway, still shuddering. Was this because of how the level was checked? Also, what are good spark plug/wire brands to get? What size socket do I use to remove the plugs or is it a special one I need to pick up. Mine is a 1993 Bonneville SE and the owners manual was lost eons ago so I don't hjave access to this very basic info. I love this car and would hate myself if I find out I ruined my baby. Thanks.
vjoankay is offline   Reply With Quote
Old 08-19-2007, 11:36 AM   #2
Senior Member
True Car Nut
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Thanks: 0
Thanked 0 Times in 0 Posts
Archon is on a distinguished road

When was the transmission fluid and filter last replaced? If it has been a while, start with that. The transmission should be at operating temperature, engine running, in park (neutral will do, but is safer in park) on a level surface, when the fluid is checked.

Autolite, AC/Delco, NGK are good plugs, for a start. Autolite, AC/Delco, Belden premium for NAPA are good wires.

Edit - and welcome to our little corner of the internet.
Archon is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Crap! Injector/PCM Problem? (was Coolant/Shuddering issue) Arbelac 1992-1999 17 07-06-2006 09:52 AM
Classic "shuddering" bonneville problem 94bonnyV 1992-1999 8 01-22-2004 08:23 PM
Shuddering 94bonnyV 1992-1999 4 05-09-2003 11:14 AM
Shuddering/Struggling engine/tranny HELP!!! Burgundy_Boat 1992-1999 2 04-22-2003 09:26 AM
Shuddering under load! Bob Keyes 1992-1999 6 04-18-2003 07:37 PM

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 07:34 AM.

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 and affiliated sites.