May 25, 2010my neighbor has an 02 3500 4X4 with a 6.6 D-max in it.
today it developed a rough run condition at idle, like it was a gas engine with a big cam in it.
it also dropped about 10 lbs oil pressure, and has an oil leak from a small tube near the front of the engine, with about 1 qt of oil leaking out in 30 miles.
when you shut the engine off, you hear the turbo spooling down through the intake. it has never done this before. the exhaust has a nasty smell to it, kind of a mix of oil and coolant. it still runs good, even with the slight whitish smoke out of the exhaust. i told him to park it till we could figure it out.
i am leaning towards the turbo oil seal going south, but i am a ford diesel mechanic and don`t know anything about the D-max engines.
i am a regular over at FTW.
any help diagnosing this problem would be greatly appreciated.