Skipper50
TYF Newbie
SE Texas, '05 Yukon XLT 1500
05 Yukon/New guy
- Thread starter Skipper50
- Start date
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Fosscore
Full Access Member
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Welcome.
Skipper50
TYF Newbie
Replaced rear seal and oil pan to stop leakage. Tranny was dropped for this.
Following reassembly the transmission will not shift.
Found and replaced failed brakelight switch.
Still not shift.
Fluid levels are good.
Can't find anything impeding shifting.
I'm thinking the TCM lost it's mind.
Suggestions?
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Welcome from Miami&Queens NY!
swathdiver
Full Access Member
If the torque converter moved and is not clicked in all the way then it has to come out. Let's ask Nick: @NickTransmissions
It won't upshift from first gear? If so, check to make sure your vehicle speed sensor is plugged in and wire not cut/frayed.
