tranny with DTT valve body hopping in and out on 1-2 shift

G

greencummins

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Oct 4, 2010
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so ive got a stock 47RE with a DTT valve body in it (with a voltage regulator wired into the PCM) and it seems like it does it after the first say 10 times that the tranny does the 1-2 shift, it hops from first to second then back into first until it stays in second then continues on. it also is doing this after a long highway drive. I played around with the TV cable and have it set good, the voltage is where it should be, full of fluid, only started doing this after i put the valve body in the truck. another thing it does is when i slow down to under say 17 mph, and touch the throttle, it throws me into first when i could still be in second. would that allen head screw on the side of the valve body have anything to do with these two issues?
thanks guys
-Jake
 
Wrap the wire going from the alternator to the passenger battery in aluminum foil and see if that helps. Try adjusting your apps as well.
 
BgBlDodge said:
Wrap the wire going from the alternator to the passenger battery in aluminum foil and see if that helps. Try adjusting your apps as well.
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Noise typically impacts the lockup of the trans. I would lean towards a Governor solenoid/sensor or tweaking the TV cable.
 
Agreed but its free and worth a shot.

Have you actually adjusted the voltage on the apps?
 
i checked the voltage of the apps with a voltage meter and it worked fine (nice steady increase in voltage) and after driving for a while its fine, the gov/pressure solenoid was replaced 11k miles ago, i know not to much about tranni's but what do you mean by band adjustment?
 
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