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

Engine issues please help

Thread Tools
 
Search this Thread
 
Old Mar 11, 2010 | 04:36 PM
  #1  
jlam411's Avatar
Thread Starter
Teching In
 
Joined: Sep 2007
Posts: 15
Likes: 0
Default Engine issues please help

Alright here we go. New transmission installed in november of 09. Right after that there was an almost crackling/vibration noise. The car ran fine. Shifts fine and everything. Then 6 days after the install the car dies going down the road at about 45mph. Throw it into neutral and tried to start it. Very hard start like timing is way off. Well it finally started but no rpm gauge reading for about 30 seconds. It did this several times on the way to the house. So i parked it and it sat for a couple weeks and i changed the cam position sensor and crankshaft sensor. Ran great for another 6 days of just easy driving back and forth to work. I have a heat shield rattle i know of but i also started hearing a rattling/ high pitched clank from around the tranny or bottom end area. Well today it started doing all the cutting off and hard starting and clunking again. Check all grounds and also tested battery and alternator. All seems fine. I am at a loss for what it could be. the tranny and tc are brand new. The rpm gauge cuts off for seconds at a time when starting from a cut off also. If anyone can point me in the right direction i would appreciate it. Thanks in advance.
Reply
Old Mar 11, 2010 | 04:58 PM
  #2  
SOMbitch's Avatar
TECH Senior Member
iTrader: (8)
 
Joined: Sep 2007
Posts: 6,881
Likes: 3
Default

Check the wiring on the cam sensor as the tach gets it's reading from there.
Reply
Old Mar 11, 2010 | 07:14 PM
  #3  
jlam411's Avatar
Thread Starter
Teching In
 
Joined: Sep 2007
Posts: 15
Likes: 0
Default

all the wiring is fine. I checked it throughly when i put the new cam sensor on. is there anything else that could cause the stall out. Maybe a foul spark plug causing issues or anything?
Reply
Old Mar 11, 2010 | 07:17 PM
  #4  
dnkynrbk's Avatar
9 Second Club
iTrader: (34)
 
Joined: Mar 2005
Posts: 2,248
Likes: 0
From: SPRINGFIELD MISSOURI
Default

Check the crank sensor its by the starter. It could be bad or you could have a wire exposed or pinched
Reply
Old Mar 11, 2010 | 08:21 PM
  #5  
jlam411's Avatar
Thread Starter
Teching In
 
Joined: Sep 2007
Posts: 15
Likes: 0
Default

i will check those wires and sensor tommorow. Could a pinched wire or bad crank sensro cause the stalling and the almost clunk noise i hear? sounds like a rod knock but very weird to start right after a new tranny install. car has never had nitrous or any power adder.
Reply
Old Mar 11, 2010 | 09:36 PM
  #6  
SOMbitch's Avatar
TECH Senior Member
iTrader: (8)
 
Joined: Sep 2007
Posts: 6,881
Likes: 3
Default

A cracked flexplate could maybe explain the noise but not the cutting out. Two seperate issues maybe???
Reply




All times are GMT -5. The time now is 06:57 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