2015 2500

Brycefow

New member
Dec 6, 2019
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0
1
Truck is a wt 4x4
Truck keeps dropping 6th and says incorrect ratio
Only has 130k the driver says it has a thump and throws the code
I have put a tcc in it and serviced it to make sure and there is zero metal in the pan and fluid look insanely good
So y would it keeps dropping 6th


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2004LB7

Well-known member
Dec 15, 2010
3,099
147
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Norcal
Do you have any way to monitor the speed sensors?

It may be your c4 clutches or apply piston
 

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