1998 GMC Suburban cranking

1998 GMC SUBURBAN
198,000 MILES • V8 • 4WD • AUTOMATIC
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DONNIE54
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  • 2 POSTS
i have checked the firing it is good. i have changed the crank sensor and still having problems. fuel presure is 58 pounds. it will crank sometimes and sometimes it want. any ideas???
Jul 28, 2009 at 12:21 PM
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JDL
  • CAR REPAIR CONTRIBUTOR
  • 16,098 POSTS
Your saying, it cranks good but won't start, when the problem occurs? When the problem occurs can you check B+ and ground at the injector/s, engine cranking? Can you check for codes? Some of the national brand autostores, will check codes, free of charge. If you can trust the vehicle for a round trip?
Jul 28, 2009 at 1:15 PM
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DONNIE54
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when the engine want start i can spray a little gas or starting fluid in the intake and it will start up and run for short time and sometime it will run until i turn it off. i'm not sure of what you mean B+ and ground at the injetors????
Jul 28, 2009 at 1:47 PM
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JDL
  • CAR REPAIR CONTRIBUTOR
  • 16,098 POSTS
I mean check for voltage and ground at the injector/s, engine cranking, when it refuses to start. You have that spider fuel system?
Jul 28, 2009 at 3:14 PM