I just bought a 93 5spd and it drove great at first tons of power but today i realized when the truck gets warmed up it seems like it has no ***** and you cannot hear the turbo spooling also a missing sound occurs and it only happens when the truck is to normal operating tempeture when i first get in it will run like a bat out of hell and you can here the turbo new to cummins help would be appreciated

 

Timing?

Try adding 12v to the KSB and see if the problem goes away. If so you timing is retarded.

 

would that cause it to just mess up when it gets warm it runs good untill it gets up to tempeture

 

If your timing is retarded the KSB will advance it until the engine gets warm. So in theory it could be advancing it enough to make it run OK then retarding it enough when it warms up to run bad. A long shot but worth a shot.

 

I am new to the cummins, whats this KSB you talk about? and what could i do to fix it would i need a new KSB or what??

 

One thing not to do to a cold engine is run it " like a bat outa hell ". Real hard on these babys to run them like that cold. Rswords has a good point but also may be fuel related, like not getting enough. The turbo will not spool if your not getting enough fuel. Fuel is heat, heat spins the turbo. Could be tons of things. You should think of some gauges to help diagnos problems. Fuel pressure for keeping an eye for fuel related problems, boost gauge to check that, Exhaust gas temp gauge so you don't fry the engine down. The boost and pryo work well as a team in diagnosing problems.

 

Good points Richie...

 

Your KSB wont be bad, this is just a way to trick the pump into more timing.

Do a search for KSB on here and add constant jey on 12v to it. A jumper wire from the shutdown solenoid to the KSB works best. I would toss a pic up but I'm on my phone.

 

and i referred to it runnin like a bat outta hell before the problem occured.. but would the spitting and sputtering be to much fuel not enough

 

In most cases, there is no such thing as to much fuel. ( not all ). spitting can result from a fuel starvation issue like bad lift pump, plugged fuel filter ect. Start with a fresh fuel filter.

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Figured I would stop by your side of the tracks to help ya out. Slacker.