Service 4x4 HELP!!!!

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New member
Sep 8, 2012
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Vermont
Ok so I posted a thread a little while back about my service 4x4 issue.

Ended up bringing it to the dealer where they found the code c0327. They also found that my encoder motor was an NP8 when the truck needs an NP1. I have a 263 transfer case. My question is how would they know which encoder motor I have just from looking at it?

Anyway I ordered an NP1 encoder motor and installed it. No luck. Had it scanned for codes again and now it has c0327 and B0790.

What should my next step be?

Also why would my truck have an NP8 encoder motor when it needed an NP1 and still be working prior to this?

Any help is appreciated. I can provide more information if you need it.