Compression Ignition Addict
Join Date: Jan 2009
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2003 6.0L starts hard when hot...opinions....?
I have an 03 6.0L and it runs really good but has a hard time starting when hot. Since I went from 15w40 to 5w40 synthetic the problem is slightly worse. Took it to the Ford dealership and they said I need a new engine because this one is "dusted"????????
I pulled the air intake hose right at the turbo and fins look fine...hmmm..dusted?? Plus when the engine is hot,no blue smoke coming out the tail pipes...
I have 37" 13.5 tires and I can do a burnout like I'm on ice....power seems good. When the engine sits ovenight it fires right up in the mourning. I can let it run for a few minutes,shut it off and try to start it again and it fires right up over and over again. If my engine was "dusted" wouldn't the problem be all the time instead of only when the engine is hot??
Also,some times the engine starts as normal when hot. I'd say 70% of the time it starts bad when hot but 30% of the time it starts normally.
Also when up to temp and sitting at idle,if I hold the throttle wide open "sometimes" white blueish smoke will pore out of the exhaust and other times the engine will rev cleanly with no problems.Under load it seems fine.Over 15,000 km of driving the problem hasn't gotten worse and my coolant level stays the same.
The other guy I bought it from had a chip in it but says he took it out of the truck. How can I tell if it has one or not??
I think it has something to do with o-rings leaking or a hi pressure pump...what do you guys think?
Next question is if I buy a scan tool could i fix this myself. Don't know if I trust these Ford dealerships anymore....
Any info would be appreciated.
2003 F-350 extended cab long box
8" lift with 37x13.5x18 Procomp Xtreme Terrains
Raceline Rims Renegade 8's Polished
M.B.R.P cool duals
Bully race pedals ( for racing! lol )
interior off road headache rack
Air hawk mud flaps