LS1TECH - Camaro and Firebird Forum Discussion

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

Ls1 knocking

Thread Tools
 
Search this Thread
 
Old Jul 9, 2017 | 05:46 PM
Share
  #1  
2001CSS's Avatar
2001CSS
Thread Starter
Registered User
 
Joined: Jul 2017
Posts: 8
Likes: 0
Default Ls1 knocking
I just bought a 2001 camaro ss ls1 with 82,000 miles. Drove it 60 miles with no problems sounded good then yesterday I hit the ASR button and turned it back on not sure if that can cause something to make a knocking noise. Also the guy I got it from said there's something wrong with the parking brake. I changed the oil and oil filter and didn't see any signs of metal or anything. Any idea what it could be thank you.
Reply
0
Old Jul 10, 2017 | 11:08 AM
Share
  #2  
nine8ss's Avatar
nine8ss
Launching!
iTrader: (5)
 
Joined: Feb 2016
Posts: 253
Likes: 2
From: Tucson, AZ
Default
Your post is missing some information that will make it hard to diagnose. Did the knock start when you turned the traction control back on? Did it always knock? Top or bottom of motor? A video or sound recording would help a ton.
Reply
0
Old Jul 11, 2017 | 04:07 PM
Share
  #3  
2001CSS's Avatar
2001CSS
Thread Starter
Registered User
 
Joined: Jul 2017
Posts: 8
Likes: 0
Default
Originally Posted by nine8ss
Your post is missing some information that will make it hard to diagnose. Did the knock start when you turned the traction control back on? Did it always knock? Top or bottom of motor? A video or sound recording would help a ton.
I turned traction control on and off just to see if everything works then shut the car off then the next day I started to notice it. It's hard to hear over video by I'll try to take one. Thanks for the response
Reply
0
Old Jul 11, 2017 | 04:24 PM
Share
  #4  
2001CSS's Avatar
2001CSS
Thread Starter
Registered User
 
Joined: Jul 2017
Posts: 8
Likes: 0
Default
Originally Posted by 2001CSS
I turned traction control on and off just to see if everything works then shut the car off then the next day I started to notice it. It's hard to hear over video by I'll try to take one. Thanks for the response
https://streamable.com/i7d8g

Cant tell if it's a pushrod, lifter, injector or exhaust leak. Oil is clean and oil pressure is where it's supposed to be.
Reply
0
Old Jul 12, 2017 | 02:17 PM
Share
  #5  
nine8ss's Avatar
nine8ss
Launching!
iTrader: (5)
 
Joined: Feb 2016
Posts: 253
Likes: 2
From: Tucson, AZ
Default
Hard to tell if it is a lifter or rod. Grab a long screwdriver or a mechanic stethoscope and check different areas of the block until you find it at its loudest.
Reply
0
Old Jul 12, 2017 | 04:13 PM
Share
  #6  
2001CSS's Avatar
2001CSS
Thread Starter
Registered User
 
Joined: Jul 2017
Posts: 8
Likes: 0
Default
Originally Posted by nine8ss
Hard to tell if it is a lifter or rod. Grab a long screwdriver or a mechanic stethoscope and check different areas of the block until you find it at its loudest.
I cut open the oil filter and no signs of metal. Also there are small bubbles in the oil on the dipstick can all that knocking be from a bad oil pump o ring?
Reply
0
Old Jul 12, 2017 | 08:53 PM
Share
  #7  
G Atsma's Avatar
G Atsma
TECH Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2016
Posts: 22,308
Likes: 3,625
From: Central Cal.
Default
Only when it has gone too long at low pressure...
Reply
0

Trending Topics

Old Jul 12, 2017 | 09:21 PM
Share
  #8  
RockinWs6's Avatar
RockinWs6
TECH Addict
 
Joined: Mar 2013
Posts: 2,628
Likes: 30
Default
Oring can makes the engine knock like hell, if its full of air the lifters will be noisy. You can try what I've done to all my Ls1 cars, add a fews ozs of TransX , won't hurt a thing and may sell the oring enough so it seals the air out.
Reply
0
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 Jul 13, 2017 | 09:29 AM
Share
  #9  
2001CSS's Avatar
2001CSS
Thread Starter
Registered User
 
Joined: Jul 2017
Posts: 8
Likes: 0
Default
Originally Posted by RockinWs6
Oring can makes the engine knock like hell, if its full of air the lifters will be noisy. You can try what I've done to all my Ls1 cars, add a fews ozs of TransX , won't hurt a thing and may sell the oring enough so it seals the air out.
okay thank you for the advice.
Reply
0
Back to Subforum
Generation III Internal Engine
View Next Unread
Recommend heads for my build!




Advanced Search

All times are GMT -5. The time now is 06:31 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