Thread: L300 Fuel Pump
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Old 06-22-2019, 07:53 AM   #14
fdryer
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Join Date: Jan 2006
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2003 L-Series 3.0L Sedan
Default Re: L300 Fuel Pump

Borrow a fuel pressure gauge from AutoZone, connect it to the fuel test valve (black plastic cap covering test valve over the engine), turn on ignition. You should see pressure between 38-45 psi. Without a pressure gauge, cover the valve with a rag while depressing the valve stem - fuel should spray out to indicate fuel pump operating and creating pressure in the lines. Did you check for blown fuses?
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