Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Oil pressure and run on issues

Thread Tools
 
Search this Thread
 
Old Apr 4, 2019 | 06:35 PM
  #1  
hawkeyekris's Avatar
Thread Starter
Teching In
 
Joined: Sep 2017
Posts: 7
Likes: 0
Default Oil pressure and run on issues

Did a cam and head swap on my 05 Suburban, started it tonight for the first time, fired right up. Waited about 5-10 seconds and no oil pressure, turned the key off and the engine continues to run. Pulled the oil galley plug and reprimed the pump and restarted it, still no oil pressure, and engine ran on again. Havent pulled codes yet. Verified the oil pressure sensor is plugged in and all other sensors are connected.
Cam kit is a BTR Stage 3, 243 heads. All new engine gaskets, cam retainer plate and timing set. Had good oil pressure before teardown. Cant think of where an internal oil bleed would be. New Melling high volume, standard pressure oil pump, replaced the pickup tube o-ring. Only possible thing I can think of is I got sent the wrong cam retainer plate with the wrong style bolts, I used it anyway and just centered it before torqueing it.
I don't have a tune in it yet, not sure if that's causing the run on issue

Last edited by hawkeyekris; Apr 4, 2019 at 07:32 PM.
Reply
Old Apr 4, 2019 | 07:44 PM
  #2  
LLLosingit's Avatar
TECH Junkie
10 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Aug 2013
Posts: 3,845
Likes: 487
From: Iowa
Default

Originally Posted by hawkeyekris
Cant think of where an internal oil bleed would be. New Melling high volume, standard pressure oil pump, replaced the pickup tube o-ring. Only possible thing I can think of is I got sent the wrong cam retainer plate with the wrong style bolts
So you think you got a the wrong retainer plate or you know you did?
It's not uncommon for people with low oil pressure to find they pinched the O ring when installing it.
Reply
Old Apr 4, 2019 | 07:52 PM
  #3  
hawkeyekris's Avatar
Thread Starter
Teching In
 
Joined: Sep 2017
Posts: 7
Likes: 0
Default

I know I did, decided to use it anyway. I am going to replaced the sending unit before ripping into the motor
Reply
Old Apr 4, 2019 | 09:19 PM
  #4  
hawkeyekris's Avatar
Thread Starter
Teching In
 
Joined: Sep 2017
Posts: 7
Likes: 0
Default

Pulled the old sender, has fresh oil on it, so the oil is circulating, so assuming its the sender. Poosibly a bad BCM causing it not shut down.
Reply
Old Apr 4, 2019 | 10:47 PM
  #5  
s30.hybrid's Avatar
TECH Apprentice
iTrader: (3)
 
Joined: Apr 2012
Posts: 339
Likes: 10
From: SF Bay Area
Default

Do you have a mechanical oil pressure gauge you can install to confirm or deny the low oil pressure?
Reply
Old Apr 12, 2019 | 10:07 AM
  #6  
blkbird's Avatar
TECH Fanatic
20 Year Member
Photogenic
Liked
Loved
iTrader: (28)
 
Joined: Mar 2005
Posts: 1,678
Likes: 14
From: san antonio, tx
Default

On some of the trucks, the sending unit has a filter/screen as well. That usually gets clogged up and needs to be replaced also causing reading issues.
Reply




All times are GMT -5. The time now is 07:09 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE