Cylinder compression for Ford Explorer 4.0L 1991 ?


Old 08-29-07, 06:06 PM
Thread Starter
Join Date: Aug 2007
Posts: 28
Question Cylinder compression for Ford Explorer 4.0L 1991 ?


I have a old 1991 Ford Explorer with motor 6V 4.0L

The motor have 2 cylinder with no combustion ..

I install new spark plugs and run the motor for 2 hour ,,

then I check the spark plugs and that 2 cyilinder shows the spark plugs very clean..

The others ones are dirty ..

I think I have problems with the fuel injector system ..

Any suggestion ???

I want to know the tipical cylinder compression (lbs.) for a used Motor of Explorer 1991 . ( the motor was rebuilded 6 years ago ) (4.0L)

Thanks in advance
Sponsored Links
Old 08-29-07, 06:28 PM
HotxxxxxxxOKC's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Jul 2006
Location: USA
Posts: 8,044
I believe it is 175psi and all cylinders should be with 10% of each other.

Thread Tools
Search this Thread
Display Modes
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 -7. The time now is 03:45 AM.