Starts hard when engine is cold - any ideas?

[grelch]

Hello,

Back in January my truck began starting harder when the engine is cold (weather is not a factor here), cranking for about 5-7 seconds before it starts. The truck had about 36,000 miles on it at the time the problem began. It has been back to the dealer several times for that, but they just can't find the problem. So far they have replaced the Fuel Injection Control Module wire connector, and the Injector Control Pressure fitting kit and branch tube.

Anybody have any ideas what they might be missing before I take it back there yet one more time? Thank you.

[VeeDubTDI]

How cold is cold?

[grelch]

Cold as in sitting over night. Again, weather is not a factor here. I live in the San Francisco Bay Area, so it doesn't get very cold. It starts just as hard on Summer mornings as it does on Winter mornings.

[chuckles]

what year truck? any mods/ tuners, etc...

[firestroke]

cycle the glow plugs 3 or 4 times

[grelch]

It's an '06 F250 King Ranch, no mods. I 'll give it a try cycling the glow plugs, but am hoping to find a fix for it.

[pete37922]

plug the truck in and see if that helps start it...if so, mite be be ur glow plugs or the relay !!!

[chuckles]

was this a gradual thing, or all of a sudden, like after an oil change?

[grelch]

It was all of a sudden, but no maintenance was done prior.

[chuckles]

have you checked basics? Fuel pressure? Air Filter, 5 to 7 seconds is not real long crank times, but it is a bit on the longer end. Once it starts, how does it run cold? When it warms up, how does it run? Have they checked the FICM voltages?