1998 Chevy Blazer Engine Starting

1998 CHEVROLET BLAZER
79,000 MILES • 6 CYL • 4WD • AUTOMATIC
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KLEINKEN
  • MEMBER
  • 3 POSTS
Sometimes the 4.3 engine will crank but wont fire. If I try a few more times it will start. Other times it will start immediately. Any ideas on what could be causing this?

Thanks
Jan 16, 2008 at 6:21 AM
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MASTERTECHTIM
  • CAR REPAIR CONTRIBUTOR
  • 4,750 POSTS
possible weak fuel pump. you can have your repair shop do a amp draw test on fuel pump, if it pulls less than 8 amps then the pump is weak. these engines are real finicky on how much fuel volume they get, especially on start up. hope this helps.
Jan 29, 2021 at 12:34 PM
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KLEINKEN
  • MEMBER
  • 3 POSTS
I found out today the problem was a faulty ignition switch. This problem is somewhat prevalent on these vehicles. We could tell because the instrument lights would not always light up when we turned on the key. When the instrument lights turned on the car would start.

Thanks for the help.
Jan 29, 2021 at 12:34 PM
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