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hey everybody.. i finnaly was able to get a cummins my dream truck.. its a dully...
i put a new fuel plate and replaced the bras elbow on the turbo for wd
i was amaized with extra power wow
just one problem.... after 50 miles i got a feeling the 4 th gear its not there any more or oll of the sudden truck started runnin on high rpm i have 2000 rpm on 65 mph



did my tranny get sick?
did i do somethimg whrong?
anybody...
help



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sounds like tc is not locking up.

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could be your brake light switch or your tps or the lock up solinoid on the tranny or the converter

 

thank u for the answers
what means tc ?
tps?

 

tc = torque converter
tps = throttle position sensor

 

keep in mind to that if your putting a a fuel plate at increasing boost, i wouldnt be beating on the stock tranny alot. maby a tc and a valve body in the near future?
depends on all what you wanna do

 

where is located throttle position sensor

 

The TPS is a small plastic black box attached to the throttle linkage with 2 screws. It has a 3 wire connector that plugs into the end.

 

thank you so much

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sooner or later it s gonna be the time for a tranny..
whats your opinion on dtt (u have one) and what exacly am i looking for?
i do alot of pulling and soon i will buy a 10 ton trailer for work that i use every day
again thank u for the info

 

I really like my DTT trans. You also can't go wrong with suncoast or goerend. I would say at the least, you'll be looking for a torque converter and a valve body. I'm sure someone else will chime in here on what you should upgrade, but what I did was found a DTT builder near where I lived at the time and told him my goals and what I did with my truck and he gave me a rundown of all the parts I should upgrade.