runs rough for few minutes after restarting when hot - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat
GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

Go Back   GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat > Pontiac Bonneville > 1992-1999

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.

LinkBack Thread Tools Search this Thread
Old 12-21-2007, 11:28 AM   #11
Senior Member
Posts like a Northstar
Join Date: Jan 2002
Location: southern California
Posts: 538
Thanks: 0
Thanked 0 Times in 0 Posts
billha is on a distinguished road

Well, I found at least part of the problem. I used a vacuum gun to test the boost control actuator (BCA), and it didn't hold pressure so I replaced it with one that did hold pressure. There must have been a small vacuum leak for quite some time - maybe years!
The idle is smoother, but still not quite as smooth as I'd like.
billha is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
97 sierra runs rough in rain after tune up big carl 84 GMC/Chevrolet Truck/SUV 4 07-22-2013 10:17 PM
97 97 Bonneville rough idle after start then runs fine. Mattus Pontiac 12 11-24-2011 02:19 PM
Rough idle/running 15 minutes after shutdown Leonardo 2000-2005 55 04-20-2010 08:46 PM
Runs OK then idles rough after 15 min bobref 1992-1999 4 06-17-2009 09:02 PM
computer keeps restarting on its own LittleHoov Lounge 17 03-14-2005 05:57 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 On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 04:52 AM.