Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Cranks but will not start. 4 week problem

Thread Tools
 
Search this Thread
 
Old Dec 18, 2007 | 02:31 PM
  #1  
sevanseriesta's Avatar
Thread Starter
TECH Fanatic
iTrader: (34)
 
Joined: Sep 2003
Posts: 1,293
Likes: 1
From: Gardner, KS
Default Cranks but will not start. 4 week problem

Ok I have checked the:
Ignition control relay
Battery twice
All grounds
No breaks in the wires
all fuses inside and outside the car.
computer. twice

I am not getting spark. The car started I ran it for a while then I turned it off. After that I went back loaded a tune and it would not start. So I went back to the Original tune and it still would not start. So I bought another computer. Still will not start. I do not know what the problem is. I can not track it down. Anyone else know what I should check!
Reply
Old Dec 18, 2007 | 03:33 PM
  #2  
2001NBMZ28's Avatar
TECH Senior Member
 
Joined: Dec 2001
Posts: 5,399
Likes: 3
From: Jacksonville, FL
Default

Don't know if this will help, it's for stock, maybe you can find something listed that could've been overlooked. www.gearchatter.com/viewtopic8794.php
Reply
Old Dec 18, 2007 | 04:43 PM
  #3  
JZ28's Avatar
On The Tree
iTrader: (3)
 
Joined: Jan 2006
Posts: 108
Likes: 0
Default

If everything checked out good and it just mysteriously won't start, I would say it is most likely a crank position sensor. If that is not working, the computer will never tell the coil packs to fire. Can't really check it without a scan-tool or an oscilloscope.
Reply
Old Dec 18, 2007 | 05:25 PM
  #4  
98Camarod's Avatar
11 Second Club
iTrader: (43)
 
Joined: Aug 2006
Posts: 5,364
Likes: 2
From: Summerville, SC
Default

My vote is for the crank sensor.
Reply
Old Dec 18, 2007 | 05:27 PM
  #5  
shoemike's Avatar
TECH Fanatic
15 Year Member
iTrader: (25)
 
Joined: Dec 2005
Posts: 1,283
Likes: 2
From: Prescott, AZ
Default

you are using a tuning tool/software?
if so, which one?
Reply
Old Dec 18, 2007 | 06:17 PM
  #6  
penningta's Avatar
9 Second Club
iTrader: (3)
 
Joined: Nov 2007
Posts: 290
Likes: 0
From: Hermann, MO
Default

plus 1 on crank sensor
Reply
Old Dec 18, 2007 | 07:33 PM
  #7  
sevanseriesta's Avatar
Thread Starter
TECH Fanatic
iTrader: (34)
 
Joined: Sep 2003
Posts: 1,293
Likes: 1
From: Gardner, KS
Default

Originally Posted by shoemike
you are using a tuning tool/software?
if so, which one?
I am going to check the Crank sensor tomorrow, with gynsis. As far as tunning software I am using HP tuners. Here is My file. You can look at it and see if there is anything that might be missing!

Let me know!
Reply




All times are GMT -5. The time now is 07:14 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