2001 Oiling Problem

Thread Tools
 
Search this Thread
 
Old Feb 3, 2012 | 01:11 AM
  #1  
badride42's Avatar
Thread Starter
11 Second Club
iTrader: (10)
 
Joined: Apr 2004
Posts: 206
Likes: 0
From: La Porte, Texas
Default 2001 Oiling Problem

My son bought my 2001 Z a few months back. The car has a 408 pushing around 480 to the tires that had an oil pressure of 55 psi at idle and between 50-60 psi while driving. The car now puts out 25 psi at idle & about the same while driving. He changed the oil pump with another HO pump with the same problem. The car is not making any noise at all and seems to run ok with the limited amount of run time allowed with low pressure. Does anyone have a clue where to start? Could it be a spun cam bearing? Any direction will be greatly appreciated.
Reply
Old Feb 3, 2012 | 01:29 AM
  #2  
1c62nv's Avatar
Staging Lane
iTrader: (3)
 
Joined: Feb 2009
Posts: 99
Likes: 0
From: Texas must secede!!!
Default

could it be a bad sending unit?
Reply
Old Feb 3, 2012 | 11:19 AM
  #3  
badride42's Avatar
Thread Starter
11 Second Club
iTrader: (10)
 
Joined: Apr 2004
Posts: 206
Likes: 0
From: La Porte, Texas
Default

It has 2 sensors the Factory and an aftermarket for a pillow guage both are acting the same. For the $30.00 it may be worth trying the sensor. Thanks
Reply
Old Feb 3, 2012 | 11:34 AM
  #4  
Bad Chad's Avatar
TECH Apprentice
iTrader: (94)
 
Joined: Oct 2005
Posts: 300
Likes: 0
From: Huffman, Texas
Default

Could be some trash blocking the pick up.

My WS6 carries about 25 at Idle and 35-40 driving.
Reply
Old Feb 3, 2012 | 12:22 PM
  #5  
badride42's Avatar
Thread Starter
11 Second Club
iTrader: (10)
 
Joined: Apr 2004
Posts: 206
Likes: 0
From: La Porte, Texas
Default

We need to pull it down and check for trash and make sure he got the O-Ring sealed properly. Thanks Chad
Reply
Old Feb 3, 2012 | 02:37 PM
  #6  
Bad Chad's Avatar
TECH Apprentice
iTrader: (94)
 
Joined: Oct 2005
Posts: 300
Likes: 0
From: Huffman, Texas
Default

Originally Posted by badride42
We need to pull it down and check for trash and make sure he got the O-Ring sealed properly. Thanks Chad
Just pull the pan to check everything. It will be easier than pulling the front of the motor back down.
Reply
Old Feb 6, 2012 | 12:37 PM
  #7  
badride42's Avatar
Thread Starter
11 Second Club
iTrader: (10)
 
Joined: Apr 2004
Posts: 206
Likes: 0
From: La Porte, Texas
Default

Originally Posted by Bad Chad
Just pull the pan to check everything. It will be easier than pulling the front of the motor back down.
Will do Thanks Chad..
Reply
Old Feb 26, 2012 | 06:42 PM
  #8  
badride42's Avatar
Thread Starter
11 Second Club
iTrader: (10)
 
Joined: Apr 2004
Posts: 206
Likes: 0
From: La Porte, Texas
Default

Update; Pulled the Motor and tore it down and we found that the number 4 Main Bearing was spun. No damage to the rod or crank but all will be sent to the machine shop to be checked. We are also adding Trick Flow 235 heads while it is out.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Brett Foote
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

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

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Feb 26, 2012 | 11:30 PM
  #9  
Mike96z's Avatar
TECH Fanatic
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (78)
 
Joined: Feb 2007
Posts: 1,075
Likes: 0
From: Dallas, TX
Default

Originally Posted by Bad Chad
Could be some trash blocking the pick up.

My WS6 carries about 25 at Idle and 35-40 driving.
My 2001 has about the same but it also has a slight leak.
Reply




All times are GMT -5. The time now is 04:15 PM.

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