Oil Pressure - 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.

Reply
 
 
 
Thread Tools Search this Thread
Old 04-15-2005, 02:05 AM   #1
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Mar 2002
Location: Edmonton
Posts: 109
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi is on a distinguished road
Default Oil Pressure

My dad'* 1994 bonneville ssei is have very eratic oil pressure. He says it'* getting really close to the red zone. What can be some causes of a very low oil pressure like that? Can it be an oil filter? I know it could be a bigger problem than that but i just want to see the little things. Okay any ideas would be awsome. Thanks.
SSEi is offline   Reply With Quote
Old 04-15-2005, 07:15 AM   #2
Senior Member
Certified GM nut
 
Join Date: Jun 2004
Posts: 1,933
Thanks: 0
Thanked 0 Times in 0 Posts
95seand78z28 is on a distinguished road
Default

High oil pressure means there'* a restriction somewhere in the system. If you're lucky it could be a filter issue. Check to make sure it'* the right filter for the car. I use mostly Fram filters and it calls for a Fram PH3387A but I use a Fram PH3980. If the filter on your dad'* car doesn't cross reference either these, that could cause strange oil pressure. You could check to see if someone installed an oil cooler. If so, make sure one of the lines aren't kinked.
95seand78z28 is offline   Reply With Quote
Old 04-15-2005, 08:42 AM   #3
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

What do you mean when you say erratic. This brings back memories that I JUST fixed. To me it means when I picked up my car and the oil press needle was all over the place...about 40, 120, 80, 40, 120. worse than a fish floppin around outta water.

The only true way to find out if you have crazy oil pressure is to pull out the sending unit (near oil filter on my 95) and test with a mechanical gauge. I bought the sending unit figuring it was the sender. Never took it out of the package after reading up in techinfo about gauge problems with these clusters. Do any of your other gauges near the oil pressure gauge seem to be off as well?

If yes you probably have a bad cluster. If only the three gauges water temp, oil press and alt/boost are acting weird you can follow techinfo article to remove and clean/reseat the circuit boards. Or change the one amsll circuit board (confirmed this last night) that plugs directly onto the gauge posts for those three gauges. Or you could change the entire cluster.

If your other gauges are reading properly I would check the sending unit first. It'* pretty cheap and easy to replace. The chance your pressure is just really high due to a clog is not common, but don't rule anything out.
BillBoost37 is offline   Reply With Quote
Old 04-15-2005, 11:58 AM   #4
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Mar 2002
Location: Edmonton
Posts: 109
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi is on a distinguished road
Default

My dad'* car oil pressure goes very low. The red Zone is the danger zone where your not getting enough pressure to lubricate the engine.

As for high oil pressure. And erratic oil pressure. I have a 1994 ssei as well and on the high way i get the most eratic oil pressure. Goes from about the middle all the way to the max and above then goes down then comes up then down and just acts crazy like that. It'* been happening everytime i take it out onto the highway and for about 8months now. It just jumps up and down like that. And then when im driving around in the city the problem doesnt occur. Any ideas what that could be? Sending unit maybe?
SSEi is offline   Reply With Quote
Old 04-15-2005, 12:24 PM   #5
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

I'd probably take the first stab at the sender. Odd it'* only a higher speeds... sounds electrical and goofy. Just like a Bonnie
BillBoost37 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
SC oil and oil pressure jnoetzelmann 2000-2005 2 03-24-2010 12:19 AM
very high oil pressure reading after oil change txmike 1992-1999 3 01-10-2010 11:41 PM
1995 SE--burning oil, low oil pressure gauge. AeroCoupeSS87 1992-1999 2 12-10-2007 09:52 PM
Low oil pressure. Thicker oil? J Wikoff 1992-1999 71 06-08-2006 11:54 AM
Low oil pressure sensor in oil pan... Bob Dillon 1992-1999 9 05-11-2006 09:23 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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 02:51 PM.


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 Amazon.com and affiliated sites.