Quick question.... - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Oldsmobile When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-11-2005, 01:48 AM   #1
Senior Member
Posts like a Corvette
Thread Starter
 
Join Date: Jun 2005
Location: Berkeley, IL
Posts: 1,596
Thanks: 0
Thanked 0 Times in 0 Posts
DarkShadow is on a distinguished road
Default Quick question....

my friend just bought the 91 oldsmobile 88 that ive been lookin at forever for $800 from the dealer i bought my jeep from, its silver with power everything, driver information system, etc etc etc basically its loaded.

today on the drive home from the dealer i noticed that the oil pressure gauge was only at 1/4 during the whole trip and the driver info system was said exactly like this: CHANGE OIL NOW

so we changed the oil (10w30 Havoline regular cuz we didnt know if it had any leaks to go to synthetic or not) and after the startup the oil pressure gauge went wild, it was all over the place so im passing it off as a bad sending unit, the engine runs excellent with tons of power, and the trans is a new gm factory rebuilt unit with real smooth shifts.

now for the wierd part, we took it out again after the change and on our way back from burger king, the gauge bottomed out and the chimer threw a fit, DING DING DING DING DING....etc etc etc, now the engine the whole time is running excellent with no power loss/hesitation/wierd noises nuttin, just a smooth running 3800.

so my question is, is it the sending unit, or is the engine on its way out???

ps. its a 3800 with 131k on it
DarkShadow is offline   Reply With Quote
Old 10-11-2005, 01:54 AM   #2
Junior Member
 
Join Date: Mar 2004
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
harofreak00 is on a distinguished road
Default

is there a chance that u have to reset something after u do the oil change?
harofreak00 is offline   Reply With Quote
Old 10-11-2005, 01:56 AM   #3
Senior Member
Posts like a Corvette
Thread Starter
 
Join Date: Jun 2005
Location: Berkeley, IL
Posts: 1,596
Thanks: 0
Thanked 0 Times in 0 Posts
DarkShadow is on a distinguished road
Default

Quote:
Originally Posted by harofreak00
is there a chance that u have to reset something after u do the oil change?
i know u have to reset the driver info sys for an accurate change oil reading (dont know how to tho ), but that wouldnt have anything to do with the pressure gauge bottoming out
DarkShadow is offline   Reply With Quote
Old 10-11-2005, 08:41 AM   #4
Member
Posts like a V-Tak
 
Join Date: Mar 2004
Location: New Jersey
Posts: 63
Thanks: 0
Thanked 0 Times in 0 Posts
Andrew97Cobra is on a distinguished road
Default

Quote:
Originally Posted by DarkShadow
Quote:
Originally Posted by harofreak00
is there a chance that u have to reset something after u do the oil change?
i know u have to reset the driver info sys for an accurate change oil reading (dont know how to tho ), but that wouldnt have anything to do with the pressure gauge bottoming out
Just to be safe, I would hook up a mechanical oil pressure gauge, but it sounds like the sender is bad.

As for the oil change reminder, you reset it by holding down the OIL and RESET buttons together for a few seconds until the display shows 100%.
Andrew97Cobra is offline   Reply With Quote
Old 10-11-2005, 09:17 AM   #5
Junior Member
 
Join Date: Mar 2003
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
vital49 is on a distinguished road
Default

On most GM cars, to reset the oil change light, you have to turn the key on (but not started) and press the gas pedal to the floor three times (fully release it each time). Then turn the key off. Then start the car. It should be off.
vital49 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Quick VATS question ... Update w. airbag light question zigmeisterxiv 1992-1999 1 02-10-2010 08:42 PM
QUICK! QUICK! SPEED! QUICK! ferullo0 Performance, Brainstorming & Tuning 3 05-07-2007 05:09 PM
just a quick question 92ssei 1992-1999 6 02-19-2003 02:24 PM
Quick Question Rh-94SSE 1992-1999 2 08-16-2002 11:41 AM
Quick Question... 99BonnevilleSE General GM Chat 3 12-31-1969 08:00 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 06:34 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.