Go Back   LS1TECH > VEHICLE SPECIFIC FORUMS > Pontiac GTO 2004-2006
Sign in using an external account
Register Forgot Password?
Search

Pontiac GTO 2004-2006 The Modern Goat

Welcome to LS1Tech.com!
Welcome to LS1Tech.com.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join LS1Tech.com today!


Reply
 
Thread Tools Search this Thread
Old 06-04-2011, 09:33 PM   #1
Teching In
Garage is empty, add now
 
Trader Rating: 2
Join Date: Aug 2006
Posts: 46
Default Randomly Won't Start

So on my 04 GTO I'm having this strange issue. If I try to start the car but don't hold the key long enough, the motor sputters and then dies. Pretty normal stuff, however when this happens the car will not start afterwards. There is no tach signal, no spark, and the fuel injectors don't open. The fuel pump still primes but the dang thing just won't start. This has happened 3 times now, the first 2 times it started after sitting for a while. All I did was unplug the crank angle sensor, cam position sensor, n stuff and plug em back in and it randomly started again. This time I have no such luck. I'm thinking the crank angle sensor is crapping out on me or is there some kind of flood control in the tune that might cause this? Thanks for the help
matula11 is offline   Reply With Quote
Old 06-05-2011, 08:50 AM   #2
10 Second Club
Garage is empty, add now
 
Trader Rating: 3
Join Date: Sep 2008
Posts: 158
Default

this sounds kind of like what my car is doing, except mine hasn't started again since. I'm going to try unplugging those sensors and see what's going on.
__________________
V3NOM GTO is offline   Reply With Quote
Old 06-10-2011, 10:55 AM   #3
Teching In
Garage is empty, add now
 
Trader Rating: 2
Join Date: Aug 2006
Posts: 46
Default

I'm going to change the crank angle sensor wiring and see if that does the trick perhaps.
matula11 is offline   Reply With Quote
Old 06-10-2011, 01:07 PM   #4
Staging Lane
Garage is empty, add now
 
Trader Rating: 0
Join Date: Dec 2004
Location: Stafford VA
Posts: 82
Default

Could be the ignition key and contact ring. When you turn the key and nothing happens.... does the security light flash on the dash?
__________________
2005 Phantom Black M6 GTO
LS3 416 - Cammed

1996 BBB Impala SS
LT-1 - Cammed
bnvus is offline   Reply With Quote
Old 06-12-2011, 02:34 PM   #5
Teching In
Garage is empty, add now
 
Trader Rating: 2
Join Date: Aug 2006
Posts: 46
Default

No the problem only happens when I try to start the car but I don't hold the key in the start position long enough to start. I changed the cas and checked the wiring on it, no change.
matula11 is offline   Reply With Quote
Old 06-13-2011, 12:38 PM   #6
On The Tree
Garage is empty, add now
 
05TurboCGM's Avatar
 
Trader Rating: 0
Join Date: Sep 2009
Posts: 127
Default

it's one of two things:

1. Check your BCM wires. They could be rubbing and causing a short.
2. It's your key ring. The metal nub on the key has to make proper contact with the key ring. It's very easy for the ring to move slightly. Just wiggle it and play with it until you get good contact.
05TurboCGM is offline   Reply With Quote
Old 06-14-2011, 07:17 AM   #7
Teching In
Garage is empty, add now
 
Trader Rating: 2
Join Date: Aug 2006
Posts: 46
Default

Its not the bcm or the key ring. for the sake of simplicity I never said it before, but this isn't in a gto. Its in a 240sx with a 05 GTO ecu and motor set. So its not possible to be the bcm or the key. Anyone have any other ideas
matula11 is offline   Reply With Quote
Old 06-18-2011, 04:56 PM   #8
TECH Enthusiast
2004 Pontiac GTO
 
massillongoat's Avatar
 
Trader Rating: 3
Join Date: Apr 2008
Location: massillon,oh
Posts: 552
Default

i'm kinda having the same issue....I did a six liter swap and the oil pressure sensor is different...the big round thing behind the intake manifold...you turn the key nothing happens just kicks the starter relay...but if you pull the starter relay and jump across the posts the car cranks all day long but no spark...any ideas?
massillongoat is offline   Reply With Quote
Old 09-07-2011, 10:08 PM   #9
Teching In
Garage is empty, add now
 
Trader Rating: 2
Join Date: Aug 2006
Posts: 46
Default

I've changed the crank angle sensor and the problem hasn't returned since. I'm just gonna go ahead and say that fixed it.
matula11 is offline   Reply With Quote
Old 09-09-2011, 10:41 AM   #10
Staging Lane
Garage is empty, add now
 
Trader Rating: 0
Join Date: Oct 2008
Posts: 64
Default

for me it was the fuel injector and ignition coil driver relay in the underhood fuse block
__________________
SLP/ 243's/ EDC stick/ Pedderized/ Svede/ BFG/ ASA AR1'S

http://i150.photobucket.com/albums/s84/nasbarex/d3.jpg
NasbaGoat is offline   Reply With Quote
Old 09-09-2011, 10:41 AM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply

Tags
06, 2004, 2006, blink, car, doors, gto, ignitionwont, isnt, key, lights, pontiac, start, starting, turn, unlock


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Car won't start when i depress clutch pedal CATCH ME Manual Transmission 6 Today 01:02 PM
Starts then dies- where to start?? LETZRIDE Generation III External Engine 16 10-27-2014 03:35 PM
Won't start on the first crank-- bad fuel pump? 5_litre_eater General Maintenance & Repairs 27 10-08-2014 09:01 PM
2002 TransAm randomly won't start ktskas1 Generation III External Engine 8 06-15-2014 07:10 AM
Help!! New LS1 cranks but won't fire dtfastbear Generation III Internal Engine 8 11-12-2010 11:58 PM



All times are GMT -5. The time now is 01:41 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - JOBS
Emails & Contact Details