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New Fuel Pump not Working
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Hugh in Louisville
New User
Feb 21, 2011, 1:12 PM
Post #1 of 2
(3705 views)
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New Fuel Pump not Working
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My 1999 GMC Sonoma quit running and the fuel pump seemed to be the problem. Checked relay and fuse, and installed a new fuel pump. No go. Tested the plug, and there is some current.
What should I check next ?
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Hammer Time
Ultimate Carjunky
/ Moderator
Feb 21, 2011, 1:29 PM
Post #2 of 2
(3700 views)
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Re: New Fuel Pump not Working
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Verify power and ground to the pump and use a fuel pressure gauge to see the actual pressure. If this is a 4.3, it requires a minimum of 55 PSI to run.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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