Oil Pressure Quiz - 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 08-18-2003, 01:07 AM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2003
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
mevans49083 is on a distinguished road
Default Oil Pressure Quiz

(Disclaimer: I've already fixed this problem! I'm posting here for the other 2 million Bonneville owners that have had wacky oil pressure readings at one time or another......)

OK, here'* the deal with the used motor that I put in my '98 a couple of weeks ago that I got from a '98 SSE that got the worst end of the deal in its battle with a telephone pole:

Oil pressure gauge reads 50psi at idle and cruising. Quick acceleration, however, drops the gauge immediately into The Red Zone. Bad. Engine speed goes up, oil pressure goes down; engine speed goes down, oil pressure goes UP. WTF?

Oil pressure switch is brand new. So, Peanut Gallery............what'* the diagnosis?
mevans49083 is offline   Reply With Quote
Old 08-18-2003, 04:39 PM   #2
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2003
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
mevans49083 is on a distinguished road
Default

Yes, the other sending unit was replaced for a reason.....the reason being that an idiot (me) snapped it off when installing this motor into my car.
mevans49083 is offline   Reply With Quote
Old 08-18-2003, 04:47 PM   #3
Junior Member
Posts like a V-Tak
 
Join Date: Jun 2003
Posts: 28
Thanks: 0
Thanked 0 Times in 0 Posts
2MCHPSI is on a distinguished road
Default

Pickup tube not on completely sucking in air?? Or something bloacking the screen? Like a piece of teh low oil level sensor??

or

Problem with oil drainging backing the engine?? (probally not unless it was really gummed up)

2MCHPSI is offline   Reply With Quote
Old 08-18-2003, 04:51 PM   #4
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2003
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
mevans49083 is on a distinguished road
Default

Nope, the pickup tube was secure. Pickup screen was spotless. Oil draining back to the pan perfectly. Gauge checked out fine.
mevans49083 is offline   Reply With Quote
Old 08-18-2003, 05:23 PM   #5
Member
Posts like a V-Tak
 
Join Date: Dec 2002
Location: Tel Aviv, Israel
Posts: 73
Thanks: 0
Thanked 0 Times in 0 Posts
uri14979 is on a distinguished road
Default

Just a wild guess.... maybe the oil pressure sending unit (sensor) connector was connected upside down?

uri14979 is offline   Reply With Quote
Old 08-18-2003, 05:28 PM   #6
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2003
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
mevans49083 is on a distinguished road
Default

Nope, all wiring was good, and has been verified as such now that the problem has been fixed.
mevans49083 is offline   Reply With Quote
Old 08-18-2003, 05:30 PM   #7
Junior Member
Posts like a V-Tak
 
Join Date: Jun 2003
Posts: 28
Thanks: 0
Thanked 0 Times in 0 Posts
2MCHPSI is on a distinguished road
Default

I forgot to ask the first thing to check.. Was the oil level low?? This would definately cause those exact symptoms.
2MCHPSI is offline   Reply With Quote
Old 08-18-2003, 05:31 PM   #8
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2003
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
mevans49083 is on a distinguished road
Default

Nope, oil level was dead nuts perfect full.
mevans49083 is offline   Reply With Quote
Old 08-18-2003, 05:54 PM   #9
Senior Member
Posts like a Northstar
 
Join Date: Dec 2002
Location: Western, Mass
Posts: 587
Thanks: 0
Thanked 0 Times in 0 Posts
Bassplayincrowe is on a distinguished road
Default

Gremlins did it. Or underpants gnomes.
Bassplayincrowe is offline   Reply With Quote
Old 08-18-2003, 06:16 PM   #10
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2003
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
mevans49083 is on a distinguished road
Default

Ha! My life would be far too simple if I could just blame crap like this on gnomes! Fortunately/unfortunately, this problem had a real cause.
mevans49083 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Yankee or Dixie quiz SSE14U24ME Lounge 20 01-12-2005 01:37 PM
The Ultimate 80's Quiz Rogue Lounge 19 03-28-2004 01:29 AM
Quick Quiz MOS95B Lounge 4 03-17-2004 12:24 PM
Sexual Tension Quiz BadTA00 Lounge 3 12-25-2003 12:28 AM
Quiz!!!!!!!!! ssesc93 General GM Chat 3 08-23-2003 08:25 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 05:02 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.