Mechanics

F150 XLT LARIAT

1990 Ford F-150

We just purchased a 1990 Ford F150 XLT Lariat 4x4 w/ 162000 miles. Has a rebuilt motor w/ only 22000 miles on the motor. The fuel pump was replaced 1 year ago. In order for the truck to start after it has sat for a few hours, you have to turn the key on for 30-45 minutes. You can hear the fuel pump. And when the truck does start, you have to put it in drive 1 to take off, then put it up into drive or there is not enough power. Any suggestions as to what could be the problem?
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Leeanne243
November 6, 2006.




Sounds to me that you need a new fuel pressure regulator.

Your old one is probably bleeding off the fuel pressure.

Blackop555
Dec 28, 2007.


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