Calgary Jeep Association

Author Topic: Jeep starts then dies instantly  (Read 14284 times)

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sebasshole

  • Guest
Re: Jeep starts then dies instantly
« Reply #45 on: April 30, 2009, 10:43:57 PM »
iv changed and done

Distributor.
fuel pump
fuel filter
battery
fuel filter relay
TPS sensor
CPS sensor
balist resistor
cleaned all the clips and sensors and applied conductivity grease
checked all fuses and relays

tommorow im gona check all the clips fuses sensors relays and wires with a volt meter

Offline esi

  • That CB Yapper
  • Posts: 633
Re: Jeep starts then dies instantly
« Reply #46 on: April 30, 2009, 11:30:08 PM »
You've tried alot, maybe check if the ground on the fuel pump plug is grounding after you've checked the plug for power. You might have a good pump and power to it, but without a ground or a sometimes ground it won't work. My $0.02
Formerly of Boots & Boost Inc
Back farming and fabricating again.

Offline cLAY

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Re: Jeep starts then dies instantly
« Reply #47 on: May 01, 2009, 09:11:29 AM »
Ignition swtitch on the steering column? Just guessing now sorry.....
..

'93 ZJ, 5.2L, lifted/locked/36s..<gone>
'98 5.9er 4.10s,locked,LA,WJ knuckles

sebasshole

  • Guest
Re: Jeep starts then dies instantly
« Reply #48 on: May 01, 2009, 01:33:51 PM »
so i checked all the wires to the pump, followed them from the pump to the ground,
no shorts or anything, i cleaned the ground with a grinder for better connectivity.
still no start or prime
i followed the positive all the way to the stearing column, no shorts.
no prime no start
i cut the positive and ran it directly to the battery. NOW the pump turns on.
but still no start.

now what could it be, somewhere under the dash into the engine bay something is not working

and why is it still not starting, it is cranking over. but no start!

Offline cLAY

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Re: Jeep starts then dies instantly
« Reply #49 on: May 01, 2009, 01:43:03 PM »
ecm?
..

'93 ZJ, 5.2L, lifted/locked/36s..<gone>
'98 5.9er 4.10s,locked,LA,WJ knuckles

sebasshole

  • Guest
Re: Jeep starts then dies instantly
« Reply #50 on: May 01, 2009, 01:53:20 PM »
where is the ecm located?

Offline cLAY

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Re: Jeep starts then dies instantly
« Reply #51 on: May 01, 2009, 01:59:18 PM »
Under the dash to the right of the steering column.
..

'93 ZJ, 5.2L, lifted/locked/36s..<gone>
'98 5.9er 4.10s,locked,LA,WJ knuckles

sebasshole

  • Guest
Re: Jeep starts then dies instantly
« Reply #52 on: May 01, 2009, 02:13:07 PM »
ok well i checked under the dash and though it was on the passenger side so i found a ecu looking thing.
one clip going to it, i unpluged it and blew the dust of the clip and plugged it back it,
dun dun dunnnnnnnnnnnnnnnnnnnnnnnnnn now it wont start or even crank over.


Offline OffRoadNewbie

  • UberWheeler
  • Posts: 378
  • I Blame Keith !!
Re: Jeep starts then dies instantly
« Reply #53 on: May 01, 2009, 02:30:14 PM »
OMG its the DEVIL jeep !!!! ..........sorry to hear your having such a head ache with this .........i have a really BIG  hammer when it all gets to much

GOOD LUCK !!!!!!!!
2006 TJ its Green !! ;)
With A BIG dent in the door......

Offline esi

  • That CB Yapper
  • Posts: 633
Re: Jeep starts then dies instantly
« Reply #54 on: May 01, 2009, 03:38:27 PM »
Do you have fire insurance?
Formerly of Boots & Boost Inc
Back farming and fabricating again.

sebasshole

  • Guest
Re: Jeep starts then dies instantly
« Reply #55 on: May 01, 2009, 03:53:17 PM »
no unfortunetly lol, but it is for sale $350 whoever wants to take it for parts or to fix

Offline rangerdanger

  • Budget Lift
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Re: Jeep starts then dies instantly
« Reply #56 on: May 01, 2009, 06:04:59 PM »
Had a similar problem with a chevy blazer, cranked but no start, good spark , intermittent fuel, turned out to be a fried ecm after going through a deep water crossing. Spent big $$$ and a couple months replacing everything, but in the end it was the ecm. Tricky thing is they don t give a code when they go, they just die
Lethbridge Coulee Kruzer

Offline dubbleJs

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Re: Jeep starts then dies instantly
« Reply #57 on: May 01, 2009, 08:39:09 PM »
Damn Seb........what a pain that thing has been for you. I could pull the ecm out of my '88....flatdeck should be showing up tonight or tomorrow hopefully we can pull it out before. Give me a shout tom....
'91 XJ - 3" procrap - cutout for 33" MT's  - More and more dents every run...Sold.
'98 XJ - Lifted, locked and lovin' it

highmiler

  • Guest
Re: Jeep starts then dies instantly
« Reply #58 on: May 02, 2009, 06:59:24 AM »
I had an old ford that did that.  There was a loose/ broken wire right off the igniton When it was in the start postion, it would crank and fire, but when it went back to the run position, the power was gone.

sebasshole

  • Guest
Re: Jeep starts then dies instantly
« Reply #59 on: May 04, 2009, 09:22:39 PM »
last attempt at getting it to start, anyone in the south that can help me make sure the timing
on the distributor is correct. its cranking, its getting fuel and spark but no start.