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Old 10-29-2012, 10:15 PM   #21
sfran
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Join Date: Apr 2010
Location: Maine
Posts: 62
Re: fuel pump only pushing 15-18 PSI???? Please help...

Quote:
Originally Posted by ChevyTech View Post
Is the fuel filter plugged?

When is the last time you replaced the fuel filter?
Just put a new one on this weekend. I even checked the flow direction thinking that maybe I installed it backwards. I also just installed a new fuel pump relay.

I just did a voltage test with the pump plugged in and under load from priming. It seemed as though the voltage dropped to around 4-5 volts while priming. I moved the distribution block under the hood around, and now the pump is not even priming, but I still have voltage with the pump unplugged.
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2004 Chevy Suburban
1986 Chevy Camaro IROC-Z - LS1/T56
1990 GMC Suburban - The "TTurburban"
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