Oil Pressure???
Thread Starter
Staging Lane
Joined: Sep 2005
Posts: 70
Likes: 0
Oil Pressure??? Ok, so i got a 93 lt1 with a 152K on the odo. Still pulls very hard and nothing wrong with it at all. About the middle of last week i started noticing that my oil pressure was really whack. Before I would usually chill in stop/go traffic at 40psi. and cruising pressure of 50. Now after last week in stop/go traffic it sometimes might get extremely close to 20 psi. and i would bevery lucky to hit 50 while cruising. but mostly chills at the 40 range cruising. Also when i mash it, pressure drops crazy low like damn close to 20 
. but before it would climb when i did that. I'm thinking, oil pump, oil pressure sender, oil pressure switch, or the oil level sensor on the pan. Or the gauge itself is bad all a sudden. Any suggestions on this beast?
. but before it would climb when i did that. I'm thinking, oil pump, oil pressure sender, oil pressure switch, or the oil level sensor on the pan. Or the gauge itself is bad all a sudden. Any suggestions on this beast? 
im actually experiencing the same problem. after it sits for a night it will be about 60-70 psi, then after driving it will go to about 50 and in traffic hit 25 psi...curious if its the gauge
I bet its the OPSU (oil pressure sending unit) mine did that for a while then i got that replaced. I broke mine too, and had to drive it for a week and the gauge was all the way maxxed out.
Yea its a bitch to get to if you have LTs. The cable coming off the unit is a freaking foot long. I hear you can relocate the unit to the back of the intake manifold somewere, or that might be the EGR? Dunno 
Trending Topics
Thread Starter
Staging Lane
Joined: Sep 2005
Posts: 70
Likes: 0
ok, so if i'm to buy a mechanical gauge is there anything in particular that i would need to hook it up. or is there already provisions for it some where that i dont know about. also couldn't i have a scanner that was meant for my odb-I system, hook it up and read all the different pressure's of the system (oil, fuel, coolant temp, etc)??
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Well, pressure is normal if its close to 20 psi at a stop with engine at normal operating temperature, but it should climb with acceleration. Be worried when it won't climb up..... Mine reads very high when engine cold(75-80psi), cruising at 45-55mph sits a 40-55psi. When stopped at a light sits about 20-22psi.
9 Second Club
Joined: Jan 2006
Posts: 301
Likes: 0
From: ringgold,ga
i had a t/a with low oil psi. it read about 10-15 at idle and reved 25-30. changed the oil psi sensor above the oil filter and fixed the problem. what type oil you running? changing to a thicker oil can give you more oil psi.
Thread Starter
Staging Lane
Joined: Sep 2005
Posts: 70
Likes: 0
Originally Posted by lt1taracing
i had a t/a with low oil psi. it read about 10-15 at idle and reved 25-30. changed the oil psi sensor above the oil filter and fixed the problem. what type oil you running? changing to a thicker oil can give you more oil psi.
Last edited by drdarkman; Feb 5, 2006 at 01:09 PM.