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i recently posted saying that my truck had trouble startin in the morning even when it was only 60 degrees. the truck would start and sputter and choke out. i installed a block heater and plugged it in overnight and when i started it thismorning it ran great no sputtering or smoke. i drove to work today and it sat for about 5 hours and when i went to start it up at lunch it sputtered and smoked like hell. i have changed the oil filters and fuel filters with motorcaft filters and i have no idea what the problem is. it is a 2007 f250 6.0 with only 40000 miles on it. any ideas?
Take it to the dealer. Sounds like you need the revised pcm strategy for cold starts. If that doesn't fix it, then they may have to install a few injectors. All covered by diesel powertrain warranty.
In your case it's EXTREMELY unlikely. If plugging in the block heater helps with cold starts then IMHO Jboczar gave you extremely good advice. Take it in for the PCM update and let them check your injectors. They can do it by plugging up the diagnostic computer. You'd be money ahead to do it.
Powertrain control module formerly known as an ECM or engine control module.
If you take it in for a cold start complaint that's probably the first thing that will be done. The dealership can also check for cranky/sticking injectors and any other problems that might be unknown to you. With your mileage it should only cost you the $100 deductible and if it's emissions related it won't cost you anything.
mine is at the dealer this morning for the very same thing.
05 F350 6.0 with 93k
and I've got an elk hunting trip next week so I need this truck to perform for what will be a 2500 mile round trip, much of it wayyy off the beaten path & far out of tow truck territory.
It fact, if it craps out on me where we hunt, oh lord... there's no way to haul something out of there that's as heavy as a dead F350 crew cab. It would take one hell of a logging skidder or a big dozer to get it out of there.