Mechanics

GMC SIERRA FUEL PUMP PROBLEM

2000 GMC Sierra • 132,000 miles

2000 sierra 4.3, turn key on have 60 psi on testor, you can hear the fuel pump run for 2 secs, then gauge drops back to 0, when running, it bounces between 48-54 psi, then dies, wont stay running
Avatar
2000sierra
January 14, 2013.



Sounds like the fuel pump is weak or it has a leaky injector or fuel pressure regulator

Rasmataz
Jan 15, 2013.