1998 GMC Jimmy My 98 Jimmy will not start

Tiny
UNHOLYXTRINITY
  • MEMBER
  • 1998 GMC JIMMY
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 152,000 MILES
I have a 98 Jimmy that I have replaced the fuel pump filter, spark plugs and wires, ignition control switch, air filter etc on and it will still not start on its own. To get it to start I must spray starter fluid in the intake.I know thats not good. So I have parked the car and have gone back to searching for the problem. My fuses are good and I can hear the fuel pump ingage but I am at a loss as to why it won't start. Also sometimes it will cut off if I press the gas pedal down. Any sugesstions would be greatly appericated.
Sunday, March 22nd, 2009 AT 10:36 PM

5 Replies

Tiny
JAMES W.
  • MECHANIC
  • 2,394 POSTS
First, do you have a check engine light? If yes, I'll need to know what the codes are and their definitions.
Two things you need to check;
1- crack the incoming fuel line at the fuel rail and turn the key to "on" and see if you get fuel. The pump should run for just a few seconds. Then crank the engine and se if you get fuel being careful. You don't want a fire.
2- With an ordinary test light on both terminals of any injector connector, check for injector pulse while cranking. Let me know what you find.
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Monday, March 23rd, 2009 AT 12:31 AM
Tiny
UNHOLYXTRINITY
  • MEMBER
  • 3 POSTS
I have a check engine light but it is not on and all my injectors are fine.I also had the injectors cleaned and still will not run.
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Monday, March 23rd, 2009 AT 8:14 AM
Tiny
JAMES W.
  • MECHANIC
  • 2,394 POSTS
You need to check the 2 items I listed in the previous post. I need this info to help determine your problem.
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+1
Monday, March 23rd, 2009 AT 12:22 PM
Tiny
UNHOLYXTRINITY
  • MEMBER
  • 3 POSTS
Yes I get fuel but only if I press something into the fuel rail opening. And all my injectors are good.
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Monday, March 23rd, 2009 AT 1:45 PM
Tiny
JAMES W.
  • MECHANIC
  • 2,394 POSTS
What about injector pulse. If you have no pulse, it ain't gonna' start.
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Monday, March 23rd, 2009 AT 9:43 PM

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