Rebuilt 4l60e no movement.

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Mar 17, 2023 | 11:31 AM

#21

Maverick70080

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Quote:

Originally Posted by bbond105

This proves that the pump is working and as Tranzman says there is most likely something wrong with the EPC solenoid, its wiring or PCM/TCM. I'm thinking wiring or PCM/TCM since 2 transmissions are doing the same thing.

I was thinking the same thing. So I ran the jumper wire last night as seen here
https://chevroletforum.com/forum/sil...-update-39893/

Now the transmission acts as if it is unplugged. Pressure at idle, in p/n is 175 psi, Reverse is 180 psi, And drive is 225psi.

I also have a CEL and the code p1864 for TCC Solenoid. Should I have not ran the jumper wire? Or am I finally getting somewhere? Has anyone out there ran into this issue before? Should I remove the jumper wire at the pcm and continue with dropping the pan and checking the epc solenoid or continue on the path I am on and see what is wrong with the tcc solenoid. I did not have any CEL's before the jumper wire install but I also did not have pressure. Any help would be appreciated.

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