need some help, truck will not start.

bagged96 · 11-01-2008, 10:25 PM

ok, i have had my truck down for about two years doing a stock floor body drop. i have only been able to work on it a little at a time. but i started putting it all back together and it doesn't want to start, the fuel pump will not engage and it will not try to turn over.
i have removed the abs, the airbag system, and installed a hydro boost could any of these things cause it. if you have any ideas i would greatly appreciate them.

DISFIGUREDS10 · 11-01-2008, 11:16 PM

I know for a fact it wont run without the airbag control unit installed. hope that helps.

flawlessfab · 11-02-2008, 12:32 AM

if the fuel pump is not running did you reground the wiring harness for the rear section of the from by the bumper there is two grounds on each side of the stock frame....pretty sure if one or both is disconnected the fuel pump wont run ....

Redd · 11-02-2008, 01:03 AM

Quote: Originally Posted by DISFIGUREDS10

I know for a fact it wont run without the airbag control unit installed. hope that helps.

whats the air bag control module? I cut all my shit out. nothing inside the cab left from the abs, just a few plugs. and my truck runs

bagged96 · 11-02-2008, 08:44 AM

the 2 rear grounds are on each side of the tail light harness if i am correct. i have both of them on but i will double check it to be sure and before i gave up last night i tried putting the airbag module back on but it still didn't try to start, i will try to redo that today and see what happens also.

seems like i recall seeing someone on here say the abs system would keep your truck from starting, did you do anything to the abs but pull it out and install a prop valve redd?

Redd · 11-02-2008, 08:51 AM

just pulled the abs and left the plugs unplugged... also all my air bag crap is out or cut out.

bagged96 · 11-02-2008, 09:28 AM

Quote: Originally Posted by Redd

just pulled the abs and left the plugs unplugged... also all my air bag crap is out or cut out.

and you didn't have any trouble starting the truck after it was removed. what model is your truck?

Redd · 11-02-2008, 10:27 PM

99 s10.. base modle. no power windows, no tilt, blah blah blah....

Hell of the air bag sensors on the front core support I pulled most of the wires out and just cut them and wraped them with electrical tape..

Heres a question. When you try and start it dose the security light flash? or stay on. I know the factory has some build in anti theft deal, forgot what its called. But when I replaced my tumbler and got new keys made I had to 'relearn the key' before it would start.

Milky4204 · 11-02-2008, 11:04 PM

all my airbag and abs stuff is out of my truck and it runs just fine. It's a 2000. I would check all your grounds on the main harness.

bagged96 · 11-02-2008, 11:13 PM

when i try to start it the brake light comes on when the key is turned to the start position, but my 2001 blazer does that also but it starts when i turn the key.

derricklane72 · 11-02-2008, 11:15 PM

jump it strait at the starter to see if it will even spin over

bagged96 · 11-02-2008, 11:30 PM

Quote: Originally Posted by derricklane72

jump it strait at the starter to see if it will even spin over

i was planning on trying that today but i ran out of time before i got to do anything to my truck.

derricklane72 · 11-03-2008, 12:38 AM

hope its not locked up

NikeCheck246 · 11-03-2008, 09:20 AM

sorry to hijack, but what did everyone do with the box under the middle of the seats/console? the wiring for it runs underneath the driver side carpet under a black channel? and does everyone just unplug their airbags, specifically the steering wheel?

drps10 · 11-03-2008, 10:03 AM

like they said.. check the grounds. sounds like a grounding issue

nothing you've installed/ removed will hinder it starting, just throw codes which is not a problem ( as far as starting)

you may have the grounds in the back of the frame rail, but make sure it is plugged together.. there is a plug by the gas tank location that you can disconnect the rear harness..

2001xBlazer · 11-03-2008, 11:13 AM

sounds like something under the hood isnt plugged in right.

wiring wise

Redd · 11-03-2008, 08:57 PM

Quote: Originally Posted by NikeCheck246

sorry to hijack, but what did everyone do with the box under the middle of the seats/console? the wiring for it runs underneath the driver side carpet under a black channel? and does everyone just unplug their airbags, specifically the steering wheel?

mine is sitting in a box with the rest of the air bag crap.. I just left the wiring therefor now.

s10sixteynine · 11-03-2008, 09:59 PM

passlock??

drps10 · 11-03-2008, 10:35 PM

i don't think so.. passlock doesn't give it fuel or something like that (i forget).. he isn't getting anything

01cherryreds10 · 11-03-2008, 10:39 PM

Quote: Originally Posted by NikeCheck246

sorry to hijack, but what did everyone do with the box under the middle of the seats/console? the wiring for it runs underneath the driver side carpet under a black channel? and does everyone just unplug their airbags, specifically the steering wheel?

That's the actual SIR (air bag) module right there and will run you about tree fiddy from the stealership if you needed one. The truck will run fine without it but if you crash into a pole your head will explode quicker than the "I like this girl" thread by JBaker.

bagged96 · 11-04-2008, 08:17 AM

update on the issue, i need a new shifter cable. i have it in park now and it will crank, but the fuel pump still will not kick on. i i checked the 4 relays under the hood, the grounds, tried another fuel pump i had for a 2001 blazer and still no luck. a guy at work said that it could be an inertia switch but i don't even know if an s10 has one or where it would be. but i am a little closer cause it will crank. thanks again for all the help, any more info would be greatly appreciated.

lowdime96 · 11-04-2008, 10:32 AM

i noticed on my truck it wouldnt kick the fuel pump becuase i didnt have the heater/hvac harness plugged in and the fuel pump relay wires run through that harness.

staylow · 11-04-2008, 12:47 PM

I had the same problem.after i bodydrop my truck. come to find out it was my wiring harness. a wire came on done.Go over your harness. check all your grounds.try to prime your fuel pump.good luck

bagged96 · 11-04-2008, 11:34 PM

Quote: Originally Posted by lowdime96

i noticed on my truck it wouldnt kick the fuel pump becuase i didnt have the heater/hvac harness plugged in and the fuel pump relay wires run through that harness.

i don't remember if i have that plugged up or not i will check it tomorrow, thanks.

01cherryreds10 · 11-05-2008, 12:27 AM

There is no such thing as an intertia switch on any GM vehicle. It was used by Ford because they wanted to wire their fuel pumps like any other system. GM instead flipped the circuit around so in case of an accident, the fuel pump wouldnt ground and keep the pump running.

bagged96 · 11-05-2008, 02:16 PM

well i guess that owe all of you guys a big apology i went back out today and checked everything over one last time and when it still would not work i tried the other pump again and it started... now i need to pull the pump out of my parts truck and put it in my project truck... thanks again for all the help you guys have given me.

drps10 · 11-05-2008, 09:20 PM

well glad you got it going..

11-01-2008, 10:25 PM	#1
bagged96 Registered User Age: 27 Join Date: Sep 2006 Posts: 97 Location: martin county User is: OffLine	need some help, truck will not start. ok, i have had my truck down for about two years doing a stock floor body drop. i have only been able to work on it a little at a time. but i started putting it all back together and it doesn't want to start, the fuel pump will not engage and it will not try to turn over. i have removed the abs, the airbag system, and installed a hydro boost could any of these things cause it. if you have any ideas i would greatly appreciate them.
	[Reply w/Quote]

11-01-2008, 11:16 PM	#2
DISFIGUREDS10 Registered User Age: 30 Join Date: Oct 2008 Posts: 158 Location: User is: OffLine	Re: need some help, truck will not start. I know for a fact it wont run without the airbag control unit installed. hope that helps.
	[Reply w/Quote]

11-02-2008, 12:32 AM	#3
flawlessfab Registered User Age: 30 Join Date: Jan 2007 Posts: 998 Location: User is: OffLine	Re: need some help, truck will not start. if the fuel pump is not running did you reground the wiring harness for the rear section of the from by the bumper there is two grounds on each side of the stock frame....pretty sure if one or both is disconnected the fuel pump wont run ....
	[Reply w/Quote]

11-02-2008, 01:03 AM	#4
Redd Registered User Age: 29 Join Date: Aug 2007 Posts: 1,641 Location: Arlington, Tx/at the Nfamus shop User is: OffLine	Re: need some help, truck will not start. Quote: Originally Posted by DISFIGUREDS10 I know for a fact it wont run without the airbag control unit installed. hope that helps. whats the air bag control module? I cut all my shit out. nothing inside the cab left from the abs, just a few plugs. and my truck runs
	[Reply w/Quote]

11-02-2008, 08:44 AM	#5
bagged96 Registered User Age: 27 Join Date: Sep 2006 Posts: 97 Location: martin county User is: OffLine	Re: need some help, truck will not start. the 2 rear grounds are on each side of the tail light harness if i am correct. i have both of them on but i will double check it to be sure and before i gave up last night i tried putting the airbag module back on but it still didn't try to start, i will try to redo that today and see what happens also. seems like i recall seeing someone on here say the abs system would keep your truck from starting, did you do anything to the abs but pull it out and install a prop valve redd?
	[Reply w/Quote]

11-02-2008, 08:51 AM	#6
Redd Registered User Age: 29 Join Date: Aug 2007 Posts: 1,641 Location: Arlington, Tx/at the Nfamus shop User is: OffLine	Re: need some help, truck will not start. just pulled the abs and left the plugs unplugged... also all my air bag crap is out or cut out.
	[Reply w/Quote]

11-02-2008, 09:28 AM	#7
bagged96 Registered User Age: 27 Join Date: Sep 2006 Posts: 97 Location: martin county User is: OffLine	Re: need some help, truck will not start. Quote: Originally Posted by Redd just pulled the abs and left the plugs unplugged... also all my air bag crap is out or cut out. and you didn't have any trouble starting the truck after it was removed. what model is your truck?
	[Reply w/Quote]

11-02-2008, 10:27 PM	#8
Redd Registered User Age: 29 Join Date: Aug 2007 Posts: 1,641 Location: Arlington, Tx/at the Nfamus shop User is: OffLine	Re: need some help, truck will not start. 99 s10.. base modle. no power windows, no tilt, blah blah blah.... Hell of the air bag sensors on the front core support I pulled most of the wires out and just cut them and wraped them with electrical tape.. Heres a question. When you try and start it dose the security light flash? or stay on. I know the factory has some build in anti theft deal, forgot what its called. But when I replaced my tumbler and got new keys made I had to 'relearn the key' before it would start.
	[Reply w/Quote]

11-02-2008, 11:04 PM	#9
Milky4204 body droppin' Age: 27 Join Date: Jan 2004 Posts: 1,545 Location: kc User is: OffLine	Re: need some help, truck will not start. all my airbag and abs stuff is out of my truck and it runs just fine. It's a 2000. I would check all your grounds on the main harness.
	[Reply w/Quote]

11-02-2008, 11:13 PM	#10
bagged96 Registered User Age: 27 Join Date: Sep 2006 Posts: 97 Location: martin county User is: OffLine	Re: need some help, truck will not start. when i try to start it the brake light comes on when the key is turned to the start position, but my 2001 blazer does that also but it starts when i turn the key.
	[Reply w/Quote]

11-02-2008, 11:15 PM	#11
derricklane72 registered offender Age: 41 Join Date: May 2008 Posts: 186 Location: Blackshear GA User is: OffLine	Re: need some help, truck will not start. jump it strait at the starter to see if it will even spin over
	[Reply w/Quote]

11-02-2008, 11:30 PM	#12
bagged96 Registered User Age: 27 Join Date: Sep 2006 Posts: 97 Location: martin county User is: OffLine	Re: need some help, truck will not start. Quote: Originally Posted by derricklane72 jump it strait at the starter to see if it will even spin over i was planning on trying that today but i ran out of time before i got to do anything to my truck.
	[Reply w/Quote]

11-03-2008, 12:38 AM	#13
derricklane72 registered offender Age: 41 Join Date: May 2008 Posts: 186 Location: Blackshear GA User is: OffLine	Re: need some help, truck will not start. hope its not locked up
	[Reply w/Quote]

11-03-2008, 09:20 AM	#14
NikeCheck246 FooldU Age: 26 Join Date: Sep 2006 Posts: 409 Location: Asheville, NC User is: OffLine	Re: need some help, truck will not start. sorry to hijack, but what did everyone do with the box under the middle of the seats/console? the wiring for it runs underneath the driver side carpet under a black channel? and does everyone just unplug their airbags, specifically the steering wheel?
	[Reply w/Quote]

11-03-2008, 10:03 AM	#15
drps10 !! TALK NOW !! Age: 28 Join Date: Oct 2002 Posts: 4,893 Location: Northern Ohio User is: OffLine	Re: need some help, truck will not start. like they said.. check the grounds. sounds like a grounding issue nothing you've installed/ removed will hinder it starting, just throw codes which is not a problem ( as far as starting) you may have the grounds in the back of the frame rail, but make sure it is plugged together.. there is a plug by the gas tank location that you can disconnect the rear harness..
	[Reply w/Quote]

Remove Advertisements Sponsored Links
S10forum.com Advertisement

11-03-2008, 11:13 AM	#16
2001xBlazer snausages Age: 27 Join Date: Oct 2004 Posts: 2,308 Location: Mooresville, NC User is: OffLine	Re: need some help, truck will not start. sounds like something under the hood isnt plugged in right. wiring wise
	[Reply w/Quote]

11-03-2008, 08:57 PM	#17
Redd Registered User Age: 29 Join Date: Aug 2007 Posts: 1,641 Location: Arlington, Tx/at the Nfamus shop User is: OffLine	Re: need some help, truck will not start. Quote: Originally Posted by NikeCheck246 sorry to hijack, but what did everyone do with the box under the middle of the seats/console? the wiring for it runs underneath the driver side carpet under a black channel? and does everyone just unplug their airbags, specifically the steering wheel? mine is sitting in a box with the rest of the air bag crap.. I just left the wiring therefor now.
	[Reply w/Quote]

11-03-2008, 09:59 PM	#18
s10sixteynine lets get hammered Join Date: Mar 2007 Posts: 2,252 Location: anniston, al User is: OffLine	Re: need some help, truck will not start. passlock??
	[Reply w/Quote]

11-03-2008, 10:35 PM	#19
drps10 !! TALK NOW !! Age: 28 Join Date: Oct 2002 Posts: 4,893 Location: Northern Ohio User is: OffLine	Re: need some help, truck will not start. i don't think so.. passlock doesn't give it fuel or something like that (i forget).. he isn't getting anything
	[Reply w/Quote]

11-03-2008, 10:39 PM	#20
01cherryreds10 Those crazy ass dogs!!! Age: 22 Join Date: Jan 2007 Posts: 6,431 Location: Illinois User is: OffLine	Re: need some help, truck will not start. Quote: Originally Posted by NikeCheck246 sorry to hijack, but what did everyone do with the box under the middle of the seats/console? the wiring for it runs underneath the driver side carpet under a black channel? and does everyone just unplug their airbags, specifically the steering wheel? That's the actual SIR (air bag) module right there and will run you about tree fiddy from the stealership if you needed one. The truck will run fine without it but if you crash into a pole your head will explode quicker than the "I like this girl" thread by JBaker.
	[Reply w/Quote]

11-04-2008, 08:17 AM	#21
bagged96 Registered User Age: 27 Join Date: Sep 2006 Posts: 97 Location: martin county User is: OffLine	Re: need some help, truck will not start. update on the issue, i need a new shifter cable. i have it in park now and it will crank, but the fuel pump still will not kick on. i i checked the 4 relays under the hood, the grounds, tried another fuel pump i had for a 2001 blazer and still no luck. a guy at work said that it could be an inertia switch but i don't even know if an s10 has one or where it would be. but i am a little closer cause it will crank. thanks again for all the help, any more info would be greatly appreciated.
	[Reply w/Quote]

11-04-2008, 10:32 AM	#22
lowdime96 Disturbed Image Trucks Age: 27 Join Date: Nov 2004 Posts: 6,622 Location: Boston, MA / Southington, CT User is: OffLine	Re: need some help, truck will not start. i noticed on my truck it wouldnt kick the fuel pump becuase i didnt have the heater/hvac harness plugged in and the fuel pump relay wires run through that harness.
	[Reply w/Quote]

11-04-2008, 12:47 PM	#23
staylow BUILT BY A POORMAN Join Date: Jan 2007 Posts: 259 Location: BRANDON FL User is: OffLine	Re: need some help, truck will not start. I had the same problem.after i bodydrop my truck. come to find out it was my wiring harness. a wire came on done.Go over your harness. check all your grounds.try to prime your fuel pump.good luck
	[Reply w/Quote]

11-04-2008, 11:34 PM	#24
bagged96 Registered User Age: 27 Join Date: Sep 2006 Posts: 97 Location: martin county User is: OffLine	Re: need some help, truck will not start. Quote: Originally Posted by lowdime96 i noticed on my truck it wouldnt kick the fuel pump becuase i didnt have the heater/hvac harness plugged in and the fuel pump relay wires run through that harness. i don't remember if i have that plugged up or not i will check it tomorrow, thanks.
	[Reply w/Quote]

11-05-2008, 12:27 AM	#25
01cherryreds10 Those crazy ass dogs!!! Age: 22 Join Date: Jan 2007 Posts: 6,431 Location: Illinois User is: OffLine	Re: need some help, truck will not start. There is no such thing as an intertia switch on any GM vehicle. It was used by Ford because they wanted to wire their fuel pumps like any other system. GM instead flipped the circuit around so in case of an accident, the fuel pump wouldnt ground and keep the pump running.
	[Reply w/Quote]

11-05-2008, 02:16 PM	#26
bagged96 Registered User Age: 27 Join Date: Sep 2006 Posts: 97 Location: martin county User is: OffLine	Re: need some help, truck will not start. well i guess that owe all of you guys a big apology i went back out today and checked everything over one last time and when it still would not work i tried the other pump again and it started... now i need to pull the pump out of my parts truck and put it in my project truck... thanks again for all the help you guys have given me.
	[Reply w/Quote]

11-05-2008, 09:20 PM	#27
drps10 !! TALK NOW !! Age: 28 Join Date: Oct 2002 Posts: 4,893 Location: Northern Ohio User is: OffLine	Re: need some help, truck will not start. well glad you got it going..
	[Reply w/Quote]