REPLACED FUEL PUMP N FILTER AND RELAY N THE PUMP...

  • Tiny
  • Anonymous
  • 2000 GMC Jimmy
  • 200,000 miles

Replaced fuel pump n filter and relay n the pump comes on sometimes and sometimes it don't it just goes dead when driving wat solution do u have or Wats causing the problem

Tuesday, February 19th, 2013 AT 9:38 PM

1 Answer

  • Tiny
  • JDL
  • Expert
  • 16,236 posts

Intermittent issues can be hard to track. Id have to check voltage and ground at the fuel pump connector, when problem is ongoing. Gray wire is voltage for fuel pump motor, black is ground.

Any applicable trouble codes? Some of the national brand autostores will check codes for free.

If no initial prime could be wiring circuit/voltage or pcm. Also intermittent rpm signal can drive you crazy, engine running. Initial prime doesn't use rpm signal.

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Tuesday, February 19th, 2013 AT 10:11 PM

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