90 XJ Tranny problems

[TNTOFFROAD85CJ]

Like topic says 90 XJ 4.0 with the AW4. Tranny won't shift out of first. Fluid is fine all the obvious stuff checks out ok. I'm not at the shop today so I don't have access to mitchell. What's the specs on the TPS for these I'm thinking that's part of the problem(I thought I remembered seing a TSB on these a few years back)... standard 0-5v? Any other "frequent" causes of no shift conditions on these? Thanks... TJ

[87manche]

check that you have power going to the TCU .

[dizzymac]

Could be TPS on its way out, do a search, there is a detailed write up about its spec and adj. I adjusted to mine spec and it worked for about a week then it wouldn't shift out of first and I replaced it.
X2 what 87 said, make sure you have power to the TCU, first.

[TNTOFFROAD85CJ]

fyi it was the tps, replaced it and it's shifting fine now. Thanks for the help