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.

very high oil pressure reading after oil change

Thread Tools
 
Search this Thread
 
Old Jan 10, 2010 | 10:23 PM
  #1  
txmike's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2008
Posts: 8
Likes: 0
txmike is on a distinguished road
Default very high oil pressure reading after oil change

Hi all,

Finally, a potential problem i can post about! I've been a member for a while with very few posts because my Bonne is pretty much as reliable as a sunrise. 165K and going strong.
I've been driving a lot lately, around 3-4K miles per month, and stopped into a place for a quickie service. got the oil and filter changed as always, except I usually use Max Life oil, and this place didn't have it. So it'* got regular 10-30 Havoline and Purolator filter. I'll change it again real soon as I was overdue and the oil was pretty dirty.

Anyway, the oil pressure has ALWAYS run at about half mark at idle and the 3/4 mark at cruising speeds. Immediately after the change it went close to the 120 mark and it hasn't gone down to the 3/4 mark yet under any conditions. I drove a mile and went back to ask the guy about it. he checked and said everything was OK,. it had the correct filter blah blah and it must be a bad sending unit. I watched the guy pump 10-30 into it.

Could it be a coincidence or something they did? I can't imagine what, but it is just disconcerting to suddenly have something different with old reliable.

I should mention it is a 97 non-SC car.

Thanks

Mike

Last edited by txmike; Jan 10, 2010 at 10:24 PM. Reason: more info
Reply
Old Jan 10, 2010 | 10:26 PM
  #2  
Purplehazeir's Avatar
Senior Member
True Car Nut
 
Joined: Sep 2008
Posts: 7,979
Likes: 2
From: Arlington, WA
Purplehazeir is on a distinguished road
Default

You need to replace your oil pressure sensor. It'* an easy fix. It'* located right above your oil filter.
Reply
Old Jan 10, 2010 | 10:27 PM
  #3  
Danthurs's Avatar
Retired Senior Admin

Expert Gearhead
 
Joined: May 2006
Posts: 29,661
Likes: 40
From: Sheboygan Wisconsin
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Time for a new oil pressure sender.
Reply
Old Jan 10, 2010 | 10:41 PM
  #4  
Stinger357's Avatar
Senior Member
Posts like a Turbo
 
Joined: Dec 2009
Posts: 263
Likes: 0
From: Dallas, Texas
Stinger357 is on a distinguished road
Default

yes it is an easy fix, it fixed my problem which alerted me on my DIC saying check gauges oil pressure low, that went away but I have 2 problems my actual gauge is broke too it doesnt reset stays right above 40 and never moves so I can only assume if the actuall oil pressure was bad the DIC would alert me.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
labonnavillastragiato
1992-1999
18
Dec 12, 2006 11:05 AM
Merrill'spontiac
2000-2005
15
Oct 18, 2006 04:55 PM
armyguy2us
2000-2005
10
Feb 20, 2006 11:15 PM
bigbadbonneville
1992-1999
4
Jun 19, 2005 05:26 PM
Bret1994SSEI
1992-1999
6
May 16, 2004 11:07 PM




All times are GMT -4. The time now is 06:41 AM.