No power to fuel pump

270,566 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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MDMORENO
  • MEMBER
  • 2 POSTS
Checked fuses and replace crankshaft position sensor.
Apr 3, 2019 at 2:07 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good afternoon,

I attached a diagram of the fuel pump circuit.

The PCM sends a voltage to the control side of the relay. That will activate the load side to the pump. Check the fuse listed in the diagram for power.

Roy
Apr 3, 2019 at 4:33 AM
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