i have a 2007 f150 crew cab larait xlt it cranks over wont start i installed new fuel pump still wont start until i primedthe upper air intake with a little gas

Asked by Jan 26, 2017 at 09:58 PM about the 2007 Ford F-150 Lariat SuperCrew 5.5ft Bed 4WD

Question type: Maintenance & Repair

finished from top.....    to upper intake it started had vehicle jump battery when I unhooked jumper cables vehicle died out wouldn't start I primed it again left jumper vehicle hooked upfor hour gauge showed good in vehicle unhooked cables ran vehicle another 45 minutes when I shifted to drive gears it diedhad plenty battery life but no gas primed again it starts runs until I shift to drive gears it dies have to prime to get it to run and when cold it dies after primed gas is gone what you think could be problem ?watered down gas its below zero here for months ive put gas line anti freeze in tank I have to do work outside in -0 degree weather really don't want to do fuel pump again . do you have any possible things I could check out vehicle doesn't throw codes relay isn't blown theft light is normal

1 Answer

76,335

There is a Fuel Pressure Sensor that regulates the fuel pressure that may be bad. And when you replaced the fuel pump I hope you put a new screen into the tank with the fuel pump. One other thing could cause this would be the fuel filter. If it hasn't ben changed for awhile, then it should be.

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