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1994 GMC Safari My van wont start

Tiny
EBABE19
  • MEMBER
  • 1994 GMC SAFARI
1994 GMC Safari

I got in my van one day and started it up. It started just fine. I had relized that I had forgot something inside so I shut the van off and went inside to get it. When I came back out the van would not start. This happend 2 weeks ago and it still wont start. My husband has replaced 2 relay switches the fule pump and fule filter. He had also replaced the brain. He has checked all the fusible wires and they seem to be in good condition. Would you maby know what is wrong with it?
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Tuesday, May 18th, 2010 AT 10:13 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If its cranking over will not start do below

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
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Wednesday, May 19th, 2010 AT 12:33 AM
Tiny
EBABE19
  • MEMBER
  • 14 POSTS
We have tryed all of that and yes it is a fuel problem. We have changed everything to new and everything works, but the van still wont start. When we brought the van from a dealership they said it had no alarm system on it. We found out that it does and we have no clue how to deactivate it completley. We told the dealership about this and they say they have nothing on the alarm system and can not help us. We think this may be why it is not starting. Would you now how to deactivate a alarm system?
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Wednesday, May 19th, 2010 AT 1:53 PM

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