LLY Oil Pressure [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: LLY Oil Pressure


Professor Silverado
05-04-2004, 10:25 PM
http://www.dieselplace.com/forum/smileys/Big Smile.gif Just purchased a 2004 Chevy Duramax 3500 LLY and traded a 2002 Duramax 2500. My question is that the oil pressure for the new engine is 20-30 psi idling and 55-65 psi running. My old Duramax LB7 ran at 40 psi idling and 80 psi running. Is this a problem? Could the indicator be bad or are the new engines normally carrying lower oil pressures?

Zeeb
05-05-2004, 01:18 AM
Well I'm not one of the techs, but those numbers reflect what mine are...


From my experience with other types of engines, I don't see a problem with those numbers. In fact, I think they're actually better especially for those of us who live in areas where it gets cold in the Winter and the oil gets thick...http://www.dieselplace.com/forum/smileys/Ermm.gif


I couldn't say if it's a problem since I figured it was normal. We'll see what the guru's say.

Tired Old Man
05-05-2004, 12:45 PM
My LBY runs inexcess of 100psi cold 80 hot on real guage factory never goes over 60, Steeler says normal?