So during a recent a acquisition I ended up with some real junk trash trucks, go figure. Trying to sort through this mess I have a 2013 international 7400 with a maxxforce 9.
This truck has not been taken care of very well, but the labrie side loader body on it is in great shape and the truck isnt horrible so I wanna get it running good.
The truck is just a dog, I know these arent known for their crazy power but this thing is unusable.
Work ive done as maintenance
-crank case breather
-dpf and doc were cleaned
-egr valve was changed, stuck open
-boost tubes and solenoid
-intake manifold pressure and temperature sensors
The basics, the truck has no boost about 18psi, the exhaust back pressure valve moves with a wrench. The only code is tc1top out of range low I believe.
One more note is my exhaust back pressure reading is not constant. Sometimes it just comes up with "error"
Any help is appreciated, not really sure where to go now.