5.4 BAD STUTTER, ENGINE STALLING WHEN THE MOTOR GETS UP TO TEMPERATURE

1999 Ford F-150

Tiny

rui9671

February, 17, 2012 AT 4:42 AM

Truck has 192000 miles on it, had a new motor put in with approx 125000 miles on it. About 400 miles later it now stalls when under acceleration, almost feels like a cylinder isn't firing. Runs perfect when the motor is cold, idle's fine regardless of temp. No error codes from the computer. Have replaced fuel filter, air filter, and just did my spark plugs and no change.

FOUND 24448 RELATED QUESTIONS

Cj Stalling When Idling

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3 Answers

Tiny

Jacobandnickolas

February, 17, 2012 AT 4:43 AM

Is the fuel pressure within spec?

Tiny

rui9671

February, 17, 2012 AT 4:51 AM

Have not checked that, will check tomorrow after work

Tiny

Jacobandnickolas

February, 17, 2012 AT 5:04 AM

It may be weak.

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