Mechanics

F250 CRANK, NO START

1996 Ford F-250

Electrical problem
1996 Ford F250 V8 Two Wheel Drive Automatic 117000 miles

On occasion, my 1996 F250 will crank but will not start. If I let it sit for about 5-20 seconds with the key in the " run" position, some type of relay " opens" (left side, under the hood) and the truck will start right up. Other times, it starts right away. No rhyme or reason when this will happen. I put in a new fuel pump relay from NAPA but the issue continues. Any thoughts?
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Deadlysquid
February 10, 2010.



Could be the computer controlled of the Fp relay or the ignition switch

Rasmataz
Feb 10, 2010.
Sounds like you are saying the computer controls the activation of the fuel pump relay? Would " gunk" build up over the last 14 years inside the ignition switch also have the same effect? Does the ignition switch also provide input to the FP relay?

Tiny
Deadlysquid
Feb 10, 2010.