Slipping 4L80e related to PRNDL switch?
May 17, 2023 | 05:56 PM
#11
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Joined: Sep 2004
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From: Cali
The PRNDL switch only sends signals to let the truck crank in P or N. And for reverse lights. And also for the dash indicator. has nothing to do with inside the transmission. Now if your shifter cable isn't adjusted correctly you can have the spool valve inside the valvebody centered up and cause a cross leak from passage to passage.
I have a suspicion that this is what might have caused the issue. The B&M shifter I've had in there for 10 years. It seems as if the shifter itself is worn(not the cable). I have toyed around with the mechanism to see if I can see whats going on with it because it doesn't feel the same as it used to. I'll have to mess around with the cable to see if I can replicate the issue. But regardless, the transmission is coming out at this point. I just haven't had much time to spend on it lately.
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