Shot a rod through my block about 3 weeks ago. It was a C12, had 967k miles on it. Order a fully rebuilt engine from JSJ diesel. Came with ECM, reman head, injectors, new turbo etc. upon dropping the new engine in tonight My ABS light was on as well as my Check engine light which neither was on before the engine swap. Took the truck out on a 10 mile drive just to make sure all was well with putting it back together. 1st thing I noticed was the ABS light went out after 1 mile. Next thing I noticed was my Tachometer wasn't working. 3rd thing I noticed was my engine fan wouldn't engage manually but if I unplugged it from the firewall it would come on just not by the switch. 4th I noticed was my turbo was not boosting pass 13-15psi. Once I made it back to my garage I noticed blow by coming out if the tube. 1st question is what could be causing my tach to not work? 2ndly what is going on with my engine fan. 3rd why is my turbo not getting over 15psi and could this be the cause of the sudden blow by on a freshly overhauled engine?!?
Low boost, now blow by
Discussion in 'Trucks [ Eighteen Wheelers ]' started by PacManTrap, Jul 27, 2016.
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Spend some time CK. all clamps on air cooler and the short rubber conn. for rips, you can unplug the tach. sen. and remove it to clean the face of it and reset it at the correct space from flywheel to see if that brings it back to showing rpm?
AModelCat Thanks this. -
Ok thanks. Will go over it tomorrow with a fine tooth comb -
Ecm might not be programmed for you make of truck.
magoo68, PacManTrap and Diesel Dave Thank this. -
PacManTrap Thanks this.
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Diesel Dave Thanks this.
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Last edited by a moderator: Jul 28, 2016
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Can't really tell with the turbo without knowing what you have. Is it a waste gate, vgt, cgt? Is it ECM controlled?
PacManTrap Thanks this. -
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Sounds like the waste gate is adjusted too low. I don't believe cat would run an ECM controlled turbo in 2002.
PacManTrap Thanks this.
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