LS1TECH - Camaro and Firebird Forum Discussion

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

Lifter noise with noise video

Thread Tools
 
Search this Thread
 
Old Dec 22, 2014 | 02:05 AM
Share
  #1  
nbs lq9's Avatar
nbs lq9
Thread Starter
Teching In
 
Joined: Aug 2014
Posts: 19
Likes: 0
Default Lifter noise with noise video
I have a LQ9 out of a 2003 escalade. recently I have been having a problem where a lifter on cylinder 2 is making a annoying noise. It almost sounds as though it is partially collapsing. No metal to metal. The engine has comp cam trunion upgrade kit as well as cro-moly 7.400 pushrods as well.The oil pressure is 40 psi idle and 58 going down the road. I don't know if it is related but the oil pressure will fluctuate slightly while cruising down the road with cruise on by a few PSI up and down. If you run the engine hard the lifter goes completely quite and behaves. It only makes noise when you drive the truck normally. I'm at my wits end, any help would be much appreciated.

Engine has 74k on it.
running 5w 30 with an AC pf59 (old style metal core filter)


Any question just ask.
Reply
0
Old Dec 22, 2014 | 02:06 AM
Share
  #2  
nbs lq9's Avatar
nbs lq9
Thread Starter
Teching In
 
Joined: Aug 2014
Posts: 19
Likes: 0
Default
Its the noise in the video that sounds like hitting your finger against wood, a little louder in person
Reply
0
Old Dec 22, 2014 | 05:27 AM
Share
  #3  
RockinWs6's Avatar
RockinWs6
TECH Addict
 
Joined: Mar 2013
Posts: 2,628
Likes: 30
Default
That doesn't sound like any lifter noise I've ever heard. Is it in front of the engine? Is this engine stock? Does it have the AIR system?
Reply
0
Old Dec 22, 2014 | 10:54 AM
Share
  #4  
nbs lq9's Avatar
nbs lq9
Thread Starter
Teching In
 
Joined: Aug 2014
Posts: 19
Likes: 0
Default
Originally Posted by RockinWs6
That doesn't sound like any lifter noise I've ever heard. Is it in front of the engine? Is this engine stock? Does it have the AIR system?
Engine is completely stock except for valve train upgrades listed and it does not have the AIR system
Reply
0
Old Dec 22, 2014 | 11:25 AM
Share
  #5  
nbs lq9's Avatar
nbs lq9
Thread Starter
Teching In
 
Joined: Aug 2014
Posts: 19
Likes: 0
Default
and yes it's at the very front right next to the throttle body
Reply
0
Old Dec 22, 2014 | 06:21 PM
Share
  #6  
RockinWs6's Avatar
RockinWs6
TECH Addict
 
Joined: Mar 2013
Posts: 2,628
Likes: 30
Default
Sounds like the cam bolts may have backed out and are hitting the frt cover.
Reply
0
Old Dec 22, 2014 | 07:53 PM
Share
  #7  
02WSsicks's Avatar
02WSsicks
Launching!
iTrader: (6)
 
Joined: Oct 2003
Posts: 222
Likes: 0
From: PA
Default
check rocker arm bolts
Reply
0

Trending Topics

Old Dec 22, 2014 | 08:23 PM
Share
  #8  
nbs lq9's Avatar
nbs lq9
Thread Starter
Teching In
 
Joined: Aug 2014
Posts: 19
Likes: 0
Default
What about the cross over plate for the oil galleries that feed the lifters letting air in to the lifter closest to it?

Tearing into it on Christmas so trying to gather all possibilities.
Reply
0
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Dec 23, 2014 | 03:29 AM
Share
  #9  
RockinWs6's Avatar
RockinWs6
TECH Addict
 
Joined: Mar 2013
Posts: 2,628
Likes: 30
Default
Pull the valve covers and look at everything. Like sicks says could be loose bolts or a bend push rod. If not it maybe those cam bolts.
Reply
0
Old Dec 23, 2014 | 04:13 PM
Share
  #10  
nbs lq9's Avatar
nbs lq9
Thread Starter
Teching In
 
Joined: Aug 2014
Posts: 19
Likes: 0
Default
I'll try that tonight and report back
Reply
0
Old Dec 24, 2014 | 01:00 PM
Share
  #11  
nbs lq9's Avatar
nbs lq9
Thread Starter
Teching In
 
Joined: Aug 2014
Posts: 19
Likes: 0
Default solved
The water pump has a small bit of play in it and is rocking back and forth which was making the noise. Very strange because it isn't leaking.
Reply
0
Old Dec 24, 2014 | 01:26 PM
Share
  #12  
RockinWs6's Avatar
RockinWs6
TECH Addict
 
Joined: Mar 2013
Posts: 2,628
Likes: 30
Default
Lucky You.....easy fix fur shore. Always best to look at the obvious 1st.
Reply
0
Old Dec 26, 2014 | 05:06 PM
Share
  #13  
nbs lq9's Avatar
nbs lq9
Thread Starter
Teching In
 
Joined: Aug 2014
Posts: 19
Likes: 0
Default
Originally Posted by RockinWs6
Lucky You.....easy fix fur shore. Always best to look at the obvious 1st.
All too true, I've had my fair share of unlucky lifter noises. Last one ended with 3 flat cam lobes
Reply
0
Back to Subforum
Generation III Internal Engine
View Next Unread
cam worth it with stock converter/full bolt ons/3;23




Advanced Search

All times are GMT -5. The time now is 04:12 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE