My 2001 f150 5.4 will not start unless I turn the ignition on and off 4 times quickly

Asked by Dec 22, 2014 at 09:19 PM about the 2001 Ford F-150 XLT Crew Cab 4WD SB

Question type: Maintenance & Repair

5.4 engine. 4x4 one owner never wrecked

2 Answers

60,905

Sounds like the fuel system is losing pressure. Could be a failing fuel pump or bad check valve on the fuel line, if equipped. HTH. -Jim

16,570

Attach a fuel pressure gauge to the test port on or near the fuel rail. Start the vehicle and note the pressure. Turn off the engine and allow it to sit for five to ten minutes then note the pressure when the engine if off. If there is a significant drop in pressure, change the pump.

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