ok so i just done a head gasket on my truck not too long ago...had a hell of a headache straightning out all the other odds and ends thank you everyone who helped.
but it was running absolutely perfect it would start perfect no smoke or any issues i let it idle in my driveway for about 30 minutes and whent to drive it. everything was great and on my way home it started to roll blue white smoke out the exhaust, strong fuel smell, no power rough idle and throttle. almost seemed like the truck was overheating also but wasnt
after i got home i shut it down immediately to check it out and could not find anything at all out of the ordinary. whent to start it up the next day and it was a bitch to start and when it did it would have strong white/blue smoke for about 10 seconds rough idle then stop and when i hit the throttle it would have black smoke.
i ran the codes
code 12
48
a code for the boost solenoid
then a service throttle light is now on
and it started throwing codes for cylinder imbalance codes
i got pist off and nailed the throttle real hard and all the codes stopped now it only throws
code 12-nothing
and the service throttle light is on
but it is still the same symptoms
oh and the turbo sounds like an exhaust leak when i dont have my intake on it...maybe nothing but idk



..compression on all the cylinders are right around 5ibs of each other
lift pumps kickin good
no fuel leaks or vacuum pump leaks
please experienced diesel techs and 6.5 owners please help

 

Sounds like a ground problem with one of the 3 ground wires that anchor near the rear passenger side of the intake on a water port cover stud.

You may also need injectors?