I have a 93 3500 6.5l turbo diesel...does the temperature of engine, affect the tranny at all in its shifts....it just doesn't get up to a proper temp.. nowhere near 190-200°...just asking...thanks

SOURCE: Intermittent fault on instrument cluster

there is a wiring package that contains a wiring connector for the back of the cluster.the part number is 5016261aa

SOURCE: 1993 TOYOTA PICKUP (V6) TEMPERATURE PROBLEM

the trans will not allow overdrive until coolant reaches roughly 180 degrees, if the guage shows cool and the trans is not upshifting, or downshifts to third while driving. the problem is either a sticking (or missing) thermostat. follow the lower radiator hose to the engine and find the three 12mm nuts, remove these to get to it. a new toyota t-stat will have a little bleed valve on its face. position it upwards when installing. hope this is helpful.
P.S. Happy New Year

SOURCE: pajero diesel 2800 radiator coolant overflows, engine temp. up

REMOVE RAD CAP AND RUN ENGINE AT 3000RPM WITH ALL HEATERS ON SOUNDS LIKE AIR LOCK, ALSO CHECK IF HOSES ARE HOT

SOURCE: i have a 94' chevy 3500 dually with the 6.5 turbo diesel.

If it was the trani I would be waiting to hear you say something like it slams into gear or the RPM's go up but the speed doesn't follow. you can try to shift it in low and manually shift it up as needed. It could be that your truck is not starting out in first but rather second. Am I on the right track, is this what your trying to describe.

SOURCE: 05 dodge ram 3500 diesel 5.9 codes p1751, 1753,

Assume you have tried earseing those codes and they keep coming back?
May have a loose or bad ground the engine harness sensor circuit.

Testimonial: "Thanks, I have taken the truck to a specialist in re-flashing electronics etc and he thinks there is something in the circuit to the tranny.tks"