Oil Pressure issue
This is a discussion on Oil Pressure issue within the Internal Engine forums, part of the LSx Technical Help Section category; I have oil pressure. Start the car and it's right where it should be @ 60psi. After driving around it ...
07-03-2010, 09:32 AM #1
Oil Pressure issue
I have oil pressure. Start the car and it's right where it should be @ 60psi. After driving around it drops to 40psi. All Normal. The strange part is after driving for a while, the gauge starts to twitch at idle. It has even dropped to 20psi or so.
What could that be? Is that a gauge, sender, or pump issue. I am hooking up with a friend to scan it and see if the computer reads the same psi. Are there any ways to figure this out without replacing parts? I have lived with it for a couple of years but, I am going on a trip in a couple of weeks and don't want this to be an issue.
07-03-2010, 09:35 AM #2
- Join Date
- Feb 2009
- Mansfield, PA
Black & Blue
- '02 WS.6 / '07 Suburban
I don't believe the PCM reads oil pressure. None of the scanners that I have used have that option. May be wrong on this...
07-03-2010, 09:51 AM #3
HP Tunners does. From what I remember.
07-03-2010, 12:42 PM #4
I installed a temporay full sweep guage for the same issue with my guage to check the "real" oil presure.. Found the stock guage to be inacurate to say the least.. I replaced the sending unit cuz it's cheap with no change @ the stock guage..
Last edited by Smittro; 07-03-2010 at 12:44 PM.
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07-03-2010, 01:05 PM #5
What is a full sweep gauge? Have not heard of one.
Were you able to get an accurate reading on your pressure? Did replacing the sending unit correct the issue?
07-03-2010, 01:09 PM #6
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