Compression specs? - 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 > 1987-1991

1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

LinkBack Thread Tools Search this Thread
Old 09-07-2004, 12:42 AM   #1
Junior Member
Join Date: Jul 2004
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
BadBlue is on a distinguished road
Default Compression specs?


Can someone please tell me what the engine compression PSI should be for a 1990 Pontiac Bonneville LE, (242 000Km).
I bought an engine compression tool from a garage sale two weeks ago for $7.00 and every time I crank the enging up the needle cranks up to 100 PSI but when I reset the compression tool the needle clicks up to 60 PSI. 60 PSI shows as being in the red-zone Is the tool broken or what? There was no oil on the spark plugs so the rings are fine...the spark plugs looked normal...the engine is fine. I feel that 60 PSI is fine. Is it?
I'm sure that this must be a question that comes up often but I don't have the time to scroll through the past 1000 posts to see when it was last asked. there a SPARK PLUG for sale that also shows the engine'* compression?
BadBlue is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
Intense Pistons - 9.5:1 Compression Sol Performance, Brainstorming & Tuning 1 01-20-2004 04:48 PM
How do Compression Ratios work? macho_mike21 Performance, Brainstorming & Tuning 6 01-11-2004 04:47 PM
Engine Compression egladman 1987-1991 2 01-04-2004 01:13 AM
Compression Testing Dylansdad 1992-1999 1 09-24-2003 06:44 PM
Stock Compression on 95 SSEi? Bassplayincrowe Performance, Brainstorming & Tuning 8 07-18-2003 05:19 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 On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 04:35 PM.