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GMC Jimmy 1998

Tiny
LROBILES
  • MEMBER
  • 1998 GMC JIMMY
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
1998 GMC Jimmy - will only start when it feels like it. New wires, plugs, cap, rotor, fuel lines and fuel pump. Sometimes will start and stop all day - next day it will not start till later in the day.
Wednesday, April 6th, 2011 AT 2:36 PM

3 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
If it cranks good but won't start, have a helper crank it, while you check for spark at the plugs. If you have spark everywhere, use a gage and check fuel pressure.
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Wednesday, April 6th, 2011 AT 4:01 PM
Tiny
LROBILES
  • MEMBER
  • 2 POSTS
Spark plugs have all been changed and there is a spark. Fuel pump is brand new - pressure is good, all fuel lines have been replaced, rotor, distributor cap all new and it cranks. No codes show up when on the scope - not sure what else to look at? Any ideas would be greatly appreciated. Thanks.
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Thursday, April 14th, 2011 AT 1:14 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
If you have the spider fuel system, they are noted for problems. The fuel poppets may need cleaning?
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Thursday, April 14th, 2011 AT 1:56 PM

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