The truck ran perfect the owner didn't regen or what ever that means...

so he parked it till he had time.. so it sat for 2 months.. we changed the fuel filters and the oil filter all new oil.. and cleaned the air filter cleared the computer.

Cranked the truck over for about 25mins, it fired 3 times but then died it never idled. would only run on full throttle..


I am familiar with gas engines but not so much the diesel....

I cleaned his o2 sensor closest to the motor.. an with that cleaned it allowed it to fire...



also.. when cranking it over the dash is showin a cel with a check mark...and just a normal cel.

and theres a Exhuast light on flashing...