The oil gauge on my 2003 GMC 2500 HD fluctuates with increase and decrease of RPM's. Normal??
Enthusiast
Oil gauge fluctuates
The oil gauge on my 2003 GMC 2500 HD fluctuates with increase and decrease of RPM's. Normal??
Moderator
Defender, good question .. In my experience the short answer is yes.Originally Posted by Defender
I bought my 2003 Chevy Duramax new in Oct 2002 and have observed the following oil pressure behavior over the years I’ve owned it. At cold start up oil pressure is ~ 60 psi at idle and after the engine warms up idle oil pressure is ~ 20 psi. After warm-up and driving 65-70 mph the oil pressure is ~60 psi and ranges between 20 & 60 PSI depending on rpm and driving speed. Unless I’m missing something your truck is exhibiting normal oil pressure behavior for a 2003 LB7.
Last edited by jbplock; 10-26-2015 at 01:13.
Bill
03 2500HD D/A CC/SB/4WD,OilGuard, MegaFilter,LiftPump/PreFilter, Bilsteins,RetraxRollTop,J&J Boards,Coolant Filter,AlliDeepPan,FastIdle,AllHeadLightsOn,
98 K3500 6.5,SOLD
Enthusiast
Thank you, sir.
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