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Discussion Starter #1
My 05 just started blowing black smoke at intersections when it feels like transmission isn’t completely disengaging
hard Shifting and rpm acceleration
seems to be fine on the highway
 

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Does the truck want to take off when in drive and reverse ?Also does it take more brake pressure to stop the truck from moving?
 

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Torque converter going out, time for trans work.
 
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If it does it in Drive and reverse I would rule out your one way sprags failing. I’m no expert but had this happen to my truck. Do you have a check CEL light or code? I just had this happen to my 06, and currently rebuilding it for higher HP anyways. When I had mine apart I checked all clutches for wear because my fluid was dark which I just replaced 10k miles before rebuilding so I knew it was the torque converter clutch wearing away and something was wrong with the converter mechanically. Because my lock up solenoid was reading fine. All my clutches looked great besides being black from the burnt converter material. Also is yours the stock converter?
 

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Discussion Starter #6
Yes stock everything, shift kit and deeper pan but stock
Looking for reputable transmission shop in northern utah
Plan on pulling a fifth wheel so will upgrade to get most out of tuner
Thanks for input
 
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