2000 GMC Jimmy Repair Question
Asked on February 19, 2013
GMC Jimmy Fuel pump Problem
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
Asked by (pending member)Answer
Replied on February 19, 2013
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.
