Oil Pressure Sending Unit - 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 10-14-2004, 02:55 PM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Feb 2003
Location: Detroit
Posts: 302
Thanks: 0
Thanked 0 Times in 0 Posts
94bonnyV is on a distinguished road
Default Oil Pressure Sending Unit

I've been having some low oil pressure issues-- it seems to be directly corrolated to the temperature of the car, so i'm working toward fixing that. My question about an oil pressure sending unit arises from a similar issue with my wife'* stratus-- it seems that on that car this unit is a commonly failing unit that can be replaced (and the low oil pressure light actually is just indicated the failing unit --not necessarily the actual oil pressure)

so- does my 94 have such a unit that would be changeable-- and how likely is this my issue?
94bonnyV is offline   Reply With Quote
Old 10-14-2004, 06:06 PM   #2
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

Yes, the OPSU is replaceable. How low is low?
J Wikoff is offline   Reply With Quote
Old 10-14-2004, 11:20 PM   #3
Senior Member
Certified GM nut
 
Join Date: Feb 2003
Location: Georgia
Posts: 2,095
Thanks: 0
Thanked 0 Times in 0 Posts
DrJay is on a distinguished road
Default

Oil pressure will vary with temperature as the viscosity of the oil changes. Like the difference between molasses in winter and summer. How much of a difference is there between when you first start it an say 30minutes later?
DrJay is offline   Reply With Quote
Old 10-14-2004, 11:22 PM   #4
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Feb 2003
Location: Detroit
Posts: 302
Thanks: 0
Thanked 0 Times in 0 Posts
94bonnyV is on a distinguished road
Default

it never dips into the red but will hang just above it at idle... so i havent sweated it too much.. im planning on getting a new car in the next six months anyways...
94bonnyV is offline   Reply With Quote
Old 10-15-2004, 08:17 AM   #5
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Feb 2003
Location: Detroit
Posts: 302
Thanks: 0
Thanked 0 Times in 0 Posts
94bonnyV is on a distinguished road
Default

im pretty sure the 40 line is about at 12 oclock-- its usually right above that at start... and 30min later it will reach to just above the red at idle (when above 2k rpms it is fine)
94bonnyV is offline   Reply With Quote
Old 10-15-2004, 08:46 AM   #6
Junior Member
 
Join Date: May 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi95 is on a distinguished road
Default

I have replaced mine for just that reason. If you pull the front passenger tire off you can access the OPSU thru the wheel well without to much hassell.
SSEi95 is offline   Reply With Quote
Old 10-15-2004, 08:55 AM   #7
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Feb 2003
Location: Detroit
Posts: 302
Thanks: 0
Thanked 0 Times in 0 Posts
94bonnyV is on a distinguished road
Default

did it fix your issue?
94bonnyV is offline   Reply With Quote
Old 10-15-2004, 10:14 AM   #8
Junior Member
 
Join Date: May 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi95 is on a distinguished road
Default

Quote:
Originally Posted by 94bonnyV
did it fix your issue?
It helped. My preassure went from a low of just above the red to about 20-30 PSI at the worst now. There is engine wear and what not so it won't always be at 40, but it'* still well above the red zone now.
SSEi95 is offline   Reply With Quote
Old 10-15-2004, 10:31 AM   #9
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Feb 2003
Location: Detroit
Posts: 302
Thanks: 0
Thanked 0 Times in 0 Posts
94bonnyV is on a distinguished road
Default

good to know


thanks
94bonnyV is offline   Reply With Quote
Old 10-15-2004, 01:43 PM   #10
Senior Member
Posts like a Turbo
 
Join Date: Aug 2003
Location: Ashland, Ohio
Posts: 423
Thanks: 0
Thanked 0 Times in 0 Posts
jgs11 is on a distinguished road
Default

would my problem be the oil pressure sending unit if the oil pressure guage likes to jump way up sometimes, doesnt quite hit 120 but sure gets close sometimes, the other day though i was commin home and it was holdin a steady 110, what do you guys think?
jgs11 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Help with oil pressure sending unit daveyboy43 Oldsmobile 3 05-17-2013 09:58 AM
oil pressure sensor/ sending unit tpulliam79 1992-1999 8 04-03-2008 06:02 PM
Oil pressure Sending unit number jshelton54 2000-2005 5 01-22-2007 02:24 AM
Question about oil pressure sending unit... indyracer 2000-2005 2 03-02-2006 01:05 PM
Oil Sending Unit strizzack 1992-1999 17 02-04-2003 02:34 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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:25 AM.


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.