need a little help

01 dodge ram 2500 4x4 5.9 v8 gas, "z"
Auto trans

110k miles

trans was rebuilt 96k

did a motor swap, drove it around maybe 50 miles or so, not too many issues, the shifts were a little funny. It makes a whine in gear or neutral

now the other day it started to kill the motor when i come to a stop.

I roll to the stop in nuetral and its fine, but hes the wierd thing, if i start the truck, drive it around with out going out of 1,2 its fine...once the shift to 3rd happens, and i come to a stop the motor wants to kill. If i shift back to nuetral or to manuel 1/2 everything goes back to normal, and then the situation resets itself.... i can go back into drive fine.... once it shifts up into 3rd, then same issue, its like coming to a stop with out using the clutch.

i was thinking the convertor at first, but why would the gear i choose have an effect? i would think rev, drive, 1 , 2 would all have the same effect? why can i switch into 1st, then go back to drive while sitting still and the situation resets itself with no issue?

 

Sounds like the torque converter clutch is sticking... or the solenoid is... might want to post in MonteC's trans thread, and see what he suggests.

 

bump for some help, posted in monte C section, but no luck yet

 

I agree with HeyYou, definitely sounds like a clutch issue...but as there are multiple clutches in the auto trans, I can not really tell which clutch is the problem without opening up the transmission...if I had to guess I would say the rear clutch