Oil Pressure Sensor failing - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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

Reply
 
 
 
Thread Tools Search this Thread
Old 02-28-2015, 05:28 PM   #1
Junior Member
Thread Starter
 
Join Date: Feb 2015
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Morty is on a distinguished road
Default Oil Pressure Sensor failing

I have a 2002 Monte Carlo SS with naturally aspirated 3800. I have replace 2 oil pressure sensors now and they both have failed in the same way. The sensors simply blows the guts out of middle of the sensor and then oil just pushed around the plug and dumps oil on the ground. Both times the sensor has failed iv gotten luck and cough it before I took off on long highway drives. If this sensor would fail going down the highway I don't think it would take to long to pump the oil pan dry. I do not know what sensor was in the first time could have been stock and I replaced it when it failed with a BWD sensor from O'reillys. That sensor just failed and I got it warrantied but I want to know why they keep failing in that way. I don't want to lose a motor for something stupid like this!
Morty is offline   Reply With Quote
Old 02-28-2015, 05:42 PM   #2
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,649
Thanked 1,001 Times in 777 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

Don't buy the cheap ones. Get the AC Delco ones.

But even then, they will fail sometime down the road.

Of course, there is a final solution. Remove the electronic sensor, and install a hydraulic hose in its place and run it to the dash board and install a mechanical sensor. Then install a resistor at the OP harness to fool the PCM into thinking its seeing 40psi.
Mike is offline   Reply With Quote
The Following User Says Thank You to Mike For This Useful Post:
WilliamE (02-28-2015)
Old 02-28-2015, 06:01 PM   #3
Junior Member
Thread Starter
 
Join Date: Feb 2015
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Morty is on a distinguished road
Default

Thanks Mike
Morty is offline   Reply With Quote
Old 02-28-2015, 07:13 PM   #4
Senior Member
Posts like a Turbo
 
Join Date: Oct 2011
Location: SC
Posts: 247
Thanked 50 Times in 43 Posts
garagerog is a jewel in the roughgaragerog is a jewel in the roughgaragerog is a jewel in the rough
Default

Quote:
Originally Posted by Mike1995 View Post
Don't buy the cheap ones. Get the AC Delco ones.

But even then, they will fail sometime down the road.

Of course, there is a final solution. Remove the electronic sensor, and install a hydraulic hose in its place and run it to the dash board and install a mechanical sensor. Then install a resistor at the OP harness to fool the PCM into thinking its seeing 40psi.
I'm old and easily confused but by hydraulic hose I take it you mean a 1/8" nylon or copper line to a mechnical gauge rather than a sensor.

2004 Bonne SLE
1971 Chevelle SS
garagerog is offline   Reply With Quote
Old 02-28-2015, 07:28 PM   #5
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,649
Thanked 1,001 Times in 777 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

Yea pretty much.
Mike is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Oil pressure sensor leaks oil. Mike General GM Chat 5 04-27-2012 09:01 AM
Low oil pressure sensor in oil pan... Bob Dillon 1992-1999 9 05-11-2006 09:23 AM
Water Pump Failing? Jim W Bonneville GXP/ Northstar Powered Cars 15 03-22-2004 10:32 PM
Signs of a failing Starter motor Jim W 1987-1991 44 08-02-2003 03:21 PM
1994 Supercharger failing? brnvs 1992-1999 9 07-25-2003 02:31 PM


Tags
3800 engine, chevrolet, monte carlo, oil pressure sensor

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 06:11 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.