1999 Chevy Silverado no power going to the fule pump

1999 CHEVROLET SILVERADO
22,000 MILES • V8 • 4WD • AUTOMATIC
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BOSSMAN12
  • MEMBER
  • 1 POST
Put in a new fule pump and now there is no power going down to the pump. Have changed realy, check fuse is there any for just the fuel pump or what fuse works the pump, he has even tried running a ground wire stright from the batterie to the fule pump wireing harns. what else is there to do.
Jan 11, 2010 at 2:46 AM
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JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
Welcome to the forum, check the circuits at the fuel pump relay, engine cranking. Voltage for the load/switch side of relay, is hot all the time, ecm B fuse. Voltage for the coil side of relay, comes from the pcm, hot all the time during cranking, if there is an rpm signal. Use a digital multimeter to check for voltage.
Jan 11, 2010 at 3:31 AM
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