ya ill keep u posted. i just dont get why this is goimg on. i mean u smell the fuel. its a heavy smell. the guy made me turn off truck bcz of how bad it smoked at detroit. can it be a ECM or wire. the lead guy was like maybe overhaul. and im like u need to i overhauled it in 2020 it uses 0 oil 0 coolant. like its frustrating.
12.7 detroit smoking and rattling
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by 4noReason, Jun 15, 2022.
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Mine does it on occasion. I have air bubbles returning to passengers side tank only. After idling especially, it smokes, and misses, till it’s revved up. Then goes away. It’s an air in fuel problem I thing. Like it almost loses its prime. Maybe yours is sucking air between tanks and fuel pump. Maybe a timing sensor or bad wire? Those are my guesses on mine.
4noReason Thanks this. -
stuckinthemud, Rideandrepair and Big Road Skateboard Thank this.
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Mis adjusted valves, timing, jake, etc. With no compression it can't burn fuel.Magoo1968, stuckinthemud, 4noReason and 1 other person Thank this. -
Last edited: Jun 25, 2022
4noReason Thanks this. -
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Hey guys. So I need some reassurance. Detroit called me. And they go we need approval for 3 more hrs of labor. im like sure whats up. they go we did cylinder cut out #5 is looking bad when we cut it the smoke stopped. Im like no they are brand new all 6 i drove 20 miles on them. So they doing more tests. im bout to blow my brains. how is this possible after i replaced all 6 injectors?
Rideandrepair Thanks this. -
They're in the right directionMagoo1968, Rideandrepair and 4noReason Thank this. -
Rideandrepair Thanks this.
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Finally yes, pull the injector and stick a camera through the cup to check the piston and cylinder wall.Rideandrepair, nikmirbre and 4noReason Thank this.
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