craigmahoney95

please help, i have looked all over and cannot seem to find a solution.
my 90 jeep auto 4l will not shift down when you put the pedal to the floor
and it upshifts way too early. i already set the tv cable. tps and all other
sensors are new, and i wasnt sure so i tried to adjust the tps and discovered
that the input voltage is only about 1.5 volts from wire A to wire D and 2.3 volts
from wire A to neg battery terminal. i cleaned and used dielectric grease
on all 5 plugs/connectors. the two by the firewall, the two by the tps, and
the one under the dash on the tcm. i cleaned and tightened the ground
on the dipstick and firewall, and even tried grounding wire D directly to the
battery but that didnt work either. replaced the tcm with a used one and
same problem. fuse at the tcm is good. im all out of ideas. hopefully
someone can tell me another test i can try or something else i can try
. thanks in advance

cruiser54

Check this link out below.

Make sure the "trans" fuse is good.

http://cruiser54.com/?p=435