1992 GMC Jimmy wont start 4.3l vortec

172,000 MILES • 6 CYL • 4WD • AUTOMATIC
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JMYDALE
  • MEMBER
  • 1 POST
I picked up this 92 jimmy with a bad fuel pump. i have replaced the pump and it wont start. i can start it with starting fluid or gas into the intake. it runs for a few seconds then dies. there is fuel to the manifold. could i have an injector problem or a map sensor prob??? How tuff is it to change the injectors? and is there a way of isolating the map or injectors as the main problem? thanx.
Sep 27, 2010 at 2:53 AM
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JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
Use a noid lite and check for injector pulse, engine cranking. Any applicable trouble codes?
Sep 27, 2010 at 3:23 AM
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