Chrysler Repair: shifting, chrysler lhs, franchise type

Question
I have a 95 chrysler LHS and i have been having trouble with the car not shifting when it warms up, i have changed the transmition filter. I have been told there is a modulator valve that is adjustable but i can't find it in the manual.

Answer
Hi Deanna,
When you say "not shifthing" I suspect you mean that it will start off in 2nd gear and just stay in that gear (rather than starting in first and shifting up to 2nd, 3rd and overdrive). It sounds like your electronically controlled transaxle has detected some problem with the unit and in order to avoid any unnecessary damage has gone into "limp-in" mode which means it won't shift out of 2nd gear. It allows the car to be driven at moderate speed to a garage for analysis. The controller logs the problem as a two digit number stored in its memory. The dealer or a competent transmission shop should have a readout unit to find out what the code number is and from that they can make some conclusions about whether the trans can be repaired without being removed from the car (for example a hydrualic pressure problem) OR if some mechanical damage is involved (but follow that up by dropping the oil pans and looking for debris to be present or not) which if true would require a pretty expensive rebuild, I am sorry to say.
So that is my best advice, go to a dealer/independent and ask for a diagnostic readout and estimate for repairs. Get the code number(s), and if you like, write back with a 'follow-up' question to me and we can compare what you are told with what the shop manual says is the problem, and then decide if you are getting the correct advice. You don't have to give them a blank check, just ask for a diagnostic readout, the code numbers and the repair estimate. It will cost something to get that done (should be under $100), but the more information you have before going forward the better. I would not go to a franchise-type (AAMCO) transmission shop, but rather an independent with a good reputation or a Chrysler dealer. The place has to have a code reader with the adapter plug that mates with the Chrysler-type transmission readout plug. So inquire whether that is true if you don't go to a dealer shop.
Roland
P.S. It is good to hear from another Mendenhall. My wife's maternal side has that family name in the "tree". They settled in Indiana in the 1800's.