L92 low oil pressure

Reply Subscribe

Thread Tools

Search this Thread

Mar 21, 2016 | 04:40 PM

ricardo.benin

Thread Starter

On The Tree

Joined: Sep 2014

Posts: 129

Likes: 0

L92 low oil pressure

Hi I have a l92 6.2 in my GMC Yukon Denali and it has low oil pressure, on idle the oil pressure is just above red tick and is in the 30-35 range in oil pressure on acceleration. The engine has 145k, any idea why I have this problem.

Mar 22, 2016 | 10:11 AM

ricardo.benin

Thread Starter

On The Tree

Joined: Sep 2014

Posts: 129

Likes: 0

Anyone?

Mar 22, 2016 | 11:02 AM

JimmyGTO

On The Tree

Joined: May 2006

Posts: 131

Likes: 1

From: Virginia

With that many miles it could be just worn out. Something could be clogging the screen in the pickup tube. We just tore into my son G8 GT to do the dod delete with new cam. Sent the heads off for port and polish. When we took the oil pump out the screen had a oval shape insulator that goes in between a wire connector.(Don't know how it got there, maybe previous owner). Threw a code the day before we parked it for the tear down. With that many miles on your vehicle it's going to be hard to say what is wrong with it. Good Luck.

Mar 22, 2016 | 01:46 PM

1989GTA

TECH Junkie

Joined: Dec 2005

Posts: 3,092

Likes: 11

I take it this is at operating temperature. What does it do cold?

Mar 22, 2016 | 01:47 PM

ricardo.benin

Thread Starter

On The Tree

Joined: Sep 2014

Posts: 129

Likes: 0

I talked to the dealer today and they think it may be the oil pressure sending unit or screen mesh that blocks junk from accumulating on sensor.

Mar 22, 2016 | 10:54 PM

ricardo.benin

Thread Starter

On The Tree

Joined: Sep 2014

Posts: 129

Likes: 0

Just so you guys know, when I start the car cold it has normal oil pressure but as soon as engine warmed up oil pressure drops to above red tick, any idea

Mar 23, 2016 | 03:21 PM

ricardo.benin

Thread Starter

On The Tree

Joined: Sep 2014

Posts: 129

Likes: 0

Bump bump

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Verdad Gallardo

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

Mar 23, 2016 | 07:23 PM

ricardo.benin

Thread Starter

On The Tree

Joined: Sep 2014

Posts: 129

Likes: 0

Yeah I think I will, the engine I belive has 5w 30 oil in it now, but I think maybe the sender or screen is bad or cloged as if my oil is as low as it says it is I should have a check engine light and warning and I don't. The sender and oil pressure light are I believed in two different sensors or circuits as a fail safe.

Mar 31, 2016 | 05:42 PM

#10

Stilo

Teching In

iTrader: (2)

Joined: Mar 2011

Posts: 23

Likes: 0

From: Santa Ana, CA

did the 10w40 oil help? I have a high miles on my L92 was thinking of going with 10w30 but might just make the just to the 40

Apr 1, 2016 | 12:05 AM

#11

ricardo.benin

Thread Starter

On The Tree

Joined: Sep 2014

Posts: 129

Likes: 0

I have not got a chance to work on it, do you have a vid of it running from cold to warm

Feb 19, 2017 | 07:12 PM

#12

Stephen Griner

Staging Lane

iTrader: (17)

Joined: Mar 2005

Posts: 66

Likes: 0

From: South Georgia

I realize it is old, but was it the screen?

Jan 6, 2024 | 01:10 PM

#13

Sum_thin

Registered User

Joined: Jan 2024

Posts: 1

Likes: 0

L92 low oil pressure

I have a new crate engine in my 2007 yukon denali and have the same issue. I am going to get a new high volume oil pump and have the screen changed to see if that fixes the low pressure at idle