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

Please help!

Old Jan 26, 2002 | 06:51 PM
  #1  
NastySSoo's Avatar
Thread Starter
TECH Fanatic
 
Joined: Jan 2002
Posts: 1,376
Likes: 0
From: Stuart Fl
Default Please help!

My 00SS M6 has developed a {stumble] between about 5100 to 5400 rpm .I recently installed mac headers and orp so the first thing i checked was the new TR55 and accel 300+ wires. All good. Fuel filter is new. After about 5400 it pulls thru it and pulls strong to 6000. Put it on a scan master for the LS1 and it showed a steady 28 degrees spark and no knock retard. O2 were a little rich @910. When the car was cold 162 degrees it was fine, but after it warmed up to 192 it started to {stumble ] again. Possibly a coil? Any help would be greatly appreciated. Paul
Reply
Old Jan 27, 2002 | 09:27 AM
  #2  
F1's Avatar
F1
On The Tree
iTrader: (2)
 
Joined: Nov 2001
Posts: 190
Likes: 0
From: Pompano Beach, FL
Default Re: Please help!

ttt

Anyone hear of coil packs going bad??
Reply
Old Jan 27, 2002 | 09:51 AM
  #3  
LS1derfull's Avatar
TECH Addict
 
Joined: Dec 2001
Posts: 2,298
Likes: 2
From: new england
Default Re: Please help!

F1 havent run into this yet but a coil pack break down would be load sensitive not rpm sensitive. If you spray light mist of water on suspect coil pack and then load it up you may be able to invite condition. Give it a shot.
Reply
Old Jan 27, 2002 | 04:46 PM
  #4  
1dirtyZ's Avatar
8 Second Club
iTrader: (1)
 
Joined: Nov 2001
Posts: 3,697
Likes: 1
From: the not so stock tribe
Default Re: Please help!

check the egr o ring ( i think you have it, but not sure) it caused the exact symptoms on my car.
Reply
Old Jan 27, 2002 | 07:52 PM
  #5  
NastySSoo's Avatar
Thread Starter
TECH Fanatic
 
Joined: Jan 2002
Posts: 1,376
Likes: 0
From: Stuart Fl
Default Re: Please help!

I had to change my EGR to 98-99 style to make my headers work. That could be it. Thanks for the input.
Reply
Old Jan 28, 2002 | 09:47 AM
  #6  
MechMan's Avatar
10 Second Club
 
Joined: Nov 2001
Posts: 276
Likes: 0
From: So. Fl.
Default Re: Please help!

TTT
Reply
Old Jan 29, 2002 | 08:10 PM
  #7  
NastySSoo's Avatar
Thread Starter
TECH Fanatic
 
Joined: Jan 2002
Posts: 1,376
Likes: 0
From: Stuart Fl
Default Re: Please help!

Removed, reinstalled the EGR ring. Made three passes, the car ran perfect and pulled flawlessly to 6000! I am cautiously optimistic that it is cured ! !Dirty Z YOU ARE THE MAN! <img src="graemlins/gr_cheers.gif" border="0" alt="[cheers]" /> I think im ready for the Viper, Vette, and F-Body shoot-out in bradenton Fl on Feb 10th.
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 04:55 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE