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1999 Ford F-150 Lariat Reg Cab 120

1999 Ford F-150
Trim Info:
Rear Wheel Drive, Reg Cab 6.5' Styleside
15 mpg city / 19 mpg hwy
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November 15, 2012, 11:00 am

Rafael M
 

Question: problen getting truck to start some times in the morning

I have a ford 2004 ford f150 lariat with 5.4 triton engine and in the pass two weeks i have not been abel to get it to start every day it does o.k 1 or 2 times and them it won't start and it is always early in the morning, if i leaved sitting it will start in 4 or 5 hours, we have replased with original ford parts all 8 of the spark plugs and the fuel filter,have check battery and all the starting components all o.k., check pressure on fuel pump and it is fine, and now it is in ford shop and these morning did not wan't to start and they hook the computer to it and the computer does not say what is wrong, what is going on? i'am sure some body with a truck like mine must to have the same problem, please help me Rafael


November 21, 2012, 1:07 pm

Tyler O
Expert Mechanic

Maybe a bad engine speed sensor, or a failing component in the ignition, maybe even the fuel pump.

Check to see whats missing when it wont start.... fuel or spark?


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