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

Oil pressure way past max

Thread Tools
 
Search this Thread
 
Old Feb 17, 2005 | 04:10 PM
  #1  
Nate_Taufer's Avatar
Thread Starter
Banned
iTrader: (1)
 
Joined: Nov 2004
Posts: 2,057
Likes: 0
From: North of Seattle
Default Oil pressure way past max

Just finished up my car and she idles fine and what not, but the oil pressure gauge is buried way past max and will not move.

Is it possible that the sensor took a poo? I think the sensor is the one on the side of the oil pan right next to the starter but i could be wrong.

No rags were left in the pan as i already checked that. Im going to start her up again today and warm her up a little, then change the oil. Think this could also be my problem???

Do I need to reset the PCM you think?

Any help is greatly appreciated.

Nate
Reply
Old Feb 17, 2005 | 04:14 PM
  #2  
nspr8td lt1's Avatar
Launching!
 
Joined: May 2004
Posts: 275
Likes: 0
From: miami
Default

most likely a broken oil pressure sending unit. if you werent careful with changing the manifold this can easily happen, hell it happens when you are careful.
Reply
Old Feb 17, 2005 | 04:17 PM
  #3  
Cal's Avatar
Cal
TECH Veteran
iTrader: (1)
 
Joined: Feb 2003
Posts: 4,691
Likes: 3
From: Northern Utah
Default

Or it could be the presure relief valve in the oil pump is stuck. I'm betting on the sending unit though.
Reply
Old Feb 17, 2005 | 05:37 PM
  #4  
BandDirector Blk98ZM6's Avatar
12 Second Club
20 Year Member
Liked
iTrader: (21)
 
Joined: Feb 2003
Posts: 1,278
Likes: 43
From: Macon, GA
Default

When I swapped from my '98 LS1 to an '04 LS6 this past summer, I ordered a new oil pressure sensore (one behind manifold) and installed it. When I started it up, my oil pressure was off the guage as well. I swapped back to my '98 LS1 sensor, and everything went back to normal. I don't know if the new sensor was for a different model year, or if it was simply damage in the motor swap, but going back to my original sensor fixed my problem.
Reply
Old Feb 17, 2005 | 06:18 PM
  #5  
Nate_Taufer's Avatar
Thread Starter
Banned
iTrader: (1)
 
Joined: Nov 2004
Posts: 2,057
Likes: 0
From: North of Seattle
Default

The smaller vacuum style sensor behind the manifold? Because I couldn't find the damn thing when i put the manifold on but was too anxious to fire her up.

I think i actually broke it off when i pulled off the old manifold. But I can't seem to find a connector to it. Anybody have a pic?

Nate
Reply
Old Feb 17, 2005 | 09:31 PM
  #6  
Nate_Taufer's Avatar
Thread Starter
Banned
iTrader: (1)
 
Joined: Nov 2004
Posts: 2,057
Likes: 0
From: North of Seattle
Default

anybody?
Reply
Old Feb 17, 2005 | 09:36 PM
  #7  
ss rally red's Avatar
TECH Veteran
iTrader: (8)
 
Joined: Jan 2002
Posts: 4,298
Likes: 0
From: Destin FL
Default

Originally Posted by taufern
The smaller vacuum style sensor behind the manifold? Because I couldn't find the damn thing when i put the manifold on but was too anxious to fire her up.

I think i actually broke it off when i pulled off the old manifold. But I can't seem to find a connector to it. Anybody have a pic?

Nate
NO pics but it is about 3" in height and is on the right side(facing the car) of the motor in the very back. If you lift up the manifold a lot more in the front than you do in the back it will break almost every time. Good news is that it is realativly cheap as far as sensor go.
Reply
Old Feb 17, 2005 | 11:42 PM
  #8  
Nate_Taufer's Avatar
Thread Starter
Banned
iTrader: (1)
 
Joined: Nov 2004
Posts: 2,057
Likes: 0
From: North of Seattle
Default

do you know of a part number for it? I tried searching on gmpartsdirect and gmdiscounted parts but couldn't find anything to help me out. Thanks

Nate
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo




All times are GMT -5. The time now is 01:59 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE