Tuning, Diagnostics, Electronics, and Wiring HP Tuners | EFILive | Hand Held Programmers | Stand Alone PCM's | Electronics | Wiring Diagrams

Truck won't start WTF ??? help please

Thread Tools
 
Search this Thread
 
Old May 17, 2008 | 02:37 PM
  #1  
Mangled03gmc's Avatar
Thread Starter
Baltimore Whore
20 Year Member
iTrader: (95)
 
Joined: Apr 2004
Posts: 16,820
Likes: 2
From: In a van DOWN BY THE RIVER
Default Truck won't start WTF ??? help please

Ok so heres the deal fellas. When I start cranking it, it will fire 1-2 times and thats it. Only thing I can think of at this point is that since I have been in and out of it hooking up this nitrous system, with the doors open, closed, dome light on an off, is the batt is low. I did kill the batt while trying to start today, it went dead after less then 2 min of cranking on it, at small cranks at a time, so that leads me to think it was low. I had it started last night and left it untouched till today and now no go. Would a low batt cause it not to start. Also I found this ground wire that is unhooked, can't figure where it goes, but has to be close, due to the length. But it did run last night with it un hooked, sooo So can sombody throw me some idea of what could be going on.

Thanks guys

John
Reply
Old May 17, 2008 | 04:50 PM
  #2  
03sierraslt's Avatar
Admin
iTrader: (22)
 
Joined: Jul 2004
Posts: 19,007
Likes: 221
From: Western PA
Default

On mine that wire attaches to the hood. Almost as if GM thought about putting a lite on the hood then cheaped out.
Reply
Old May 17, 2008 | 06:04 PM
  #3  
Mangled03gmc's Avatar
Thread Starter
Baltimore Whore
20 Year Member
iTrader: (95)
 
Joined: Apr 2004
Posts: 16,820
Likes: 2
From: In a van DOWN BY THE RIVER
Default

anybody T T T

John
Reply
Old May 17, 2008 | 06:11 PM
  #4  
TurboJohn6's Avatar
TECH Enthusiast
20 Year Member
iTrader: (12)
 
Joined: Oct 2005
Posts: 539
Likes: 4
From: Bethlehem, Pennsylvania
Default

Originally Posted by 03sierraslt
On mine that wire attaches to the hood. Almost as if GM thought about putting a lite on the hood then cheaped out.
That's what I was going to tell you. It looks like the ground wire that connects to the hood. As far as your no start, do you have a security light on in your message center? Your problem could be in Passkey System (theft deterent). Had that happen to me. If you have two sets of keys, try your extra set. I had to replace the sensor in the steering column on my truck. I had my truck in the garage for a length of time while doing some modifications. It started on initial start-up and I let the truck get to operating temperature. The next day when I went to start the truck it would not fire-up. It would crank but not start. The problem came out of nowhere. Maybe this info can help you out.

Good luck!
Reply
Old May 17, 2008 | 07:32 PM
  #5  
Mangled03gmc's Avatar
Thread Starter
Baltimore Whore
20 Year Member
iTrader: (95)
 
Joined: Apr 2004
Posts: 16,820
Likes: 2
From: In a van DOWN BY THE RIVER
Default

Originally Posted by TurboJohn6
That's what I was going to tell you. It looks like the ground wire that connects to the hood. As far as your no start, do you have a security light on in your message center? Your problem could be in Passkey System (theft deterent). Had that happen to me. If you have two sets of keys, try your extra set. I had to replace the sensor in the steering column on my truck. I had my truck in the garage for a length of time while doing some modifications. It started on initial start-up and I let the truck get to operating temperature. The next day when I went to start the truck it would not fire-up. It would crank but not start. The problem came out of nowhere. Maybe this info can help you out.

Good luck!
I am not getting anything in the message box, will try the extra key. I just posted another thread, with pics of my plugs, cause it smelled like gas, since it has been in the shop I would just start it up and idle, think it was loading up more and more every time, sooo

Thanks Guys

John
Reply
Old May 17, 2008 | 08:18 PM
  #6  
Mangled03gmc's Avatar
Thread Starter
Baltimore Whore
20 Year Member
iTrader: (95)
 
Joined: Apr 2004
Posts: 16,820
Likes: 2
From: In a van DOWN BY THE RIVER
Default

Problem Fixed


John
Reply
Old May 17, 2008 | 09:30 PM
  #7  
TurboJohn6's Avatar
TECH Enthusiast
20 Year Member
iTrader: (12)
 
Joined: Oct 2005
Posts: 539
Likes: 4
From: Bethlehem, Pennsylvania
Default

Originally Posted by Mangled03gmc
Problem Fixed


John
Well...What was wrong?
Reply
Old May 17, 2008 | 10:14 PM
  #8  
NoChrome's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Jul 2005
Posts: 1,093
Likes: 0
From: Edwards AFB CA
Default

Originally Posted by Mangled03gmc
Thats what I think the prob is need a fuggn retune like now glad I will have one soon

IT WAS THE PLUGS, IT IS FIXED NOW

John
Looks like the plugs were fowled.
Reply
Old May 18, 2008 | 02:04 AM
  #9  
Mangled03gmc's Avatar
Thread Starter
Baltimore Whore
20 Year Member
iTrader: (95)
 
Joined: Apr 2004
Posts: 16,820
Likes: 2
From: In a van DOWN BY THE RIVER
Default

Originally Posted by NoChrome
Looks like the plugs were fowled.
Yes indeed they were, since I am still running the 4.8 tune in there it is idling rich as ****, due that I can run it and keep it cleaned out. So when I let it sit there and idle it just loads the plugs up, I guess last nite was all they could take... Thank god it is getting tuned soon...

John
Reply
Old May 18, 2008 | 08:50 AM
  #10  
Truckshop's Avatar
TECH Fanatic
iTrader: (17)
 
Joined: Jul 2007
Posts: 1,139
Likes: 0
From: Prairieville,La
Default

are you still running stock injectors or did you swap them. if you changed them that is the problem. if you put the stock ones back in it will run way better. if it is running too rich it will wash the cylinders out and you will be in need of a rebuild.
Reply



All times are GMT -5. The time now is 07:22 PM.