high oil pressure


Old 06-30-03, 03:19 PM
Visiting Guest
Posts: n/a
high oil pressure

I am wondering what can cause high oil pressure. Vehicle
is a '94 Chevy 1 ton 454.
Sponsored Links
Old 06-30-03, 03:41 PM
darrell McCoy
Visiting Guest
Posts: n/a
Have it checked with a manual guage. If it jives close with in dash guage, then It could be an oil sender unit or possibly a sluggish by pass valve. Has oil and filter been changed regularly? Do you use same type filter? Last question beings as I once had a ford years ago that between an AC filter and a fomoco filter, there was a different pressure reading.
Old 06-30-03, 04:10 PM
Visiting Guest
Posts: n/a
high oil pressure

94' Chevy 1 ton:
The oil is changed regularly. Fram oil filters have been used
as long as I have had the truck. Pressure used to read 40/50
now is 70/80 ( 80 is top of gauge ). Drops 20/30 at idle.
Old 06-30-03, 05:27 PM
Visiting Guest
Posts: n/a
I agree with Darrell.
Old 07-09-03, 05:05 PM
Join Date: Nov 2002
Location: San Francisco Peninsula
Posts: 121
Could be that the pressure relief valve at the oil pump outlet is stuck
Old 07-10-03, 05:33 PM
Visiting Guest
Posts: n/a
Has the oil pressure gradually risen or just all of a sudden? Are you using a heavier weight oil (20w50 maybe?) or any oil treatments like STP? Both can cause higher oil pressure to an extent.

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

Thread Tools
Search this Thread
Display Modes