Where to start my novel?
Pre Christmas, my 97 3.1 turbo diesel automatic Mu, randomly started flashing 'check trans' and proceeded to fall into limp mode.
So Trans would drive 1st, 2nd, 3rd, limp. would not kick down. every intersection was requiring to switch ignition off and back on to reset.
Immediately took it to an auto trans specialist who for 2 weeks had it, replaced the inhibitor but couldn't get the ecu to read any codes and therefore sent me away limping to an auto sparky.
Auto sparky couldn't get it to read error codes and told me to see a trans specialist.
Auto Sparky #2 couldn't get his machine to read error codes and advise to try auto sparky #3.
Auto Sparky #3 couldn't get his machine to read but "manually" pulled the codes and told me it was error 21 (Throttle Positioning Sensor) and sent me away to trans specialist.
After fitting a new TPS, still had zero positive outcome.
Now moving on to Trans Specialist #2 who now questions why inhibitor ad tps were changed, and that common faults in the 4l30-e trans are always the solenoids, however he fails to pull codes and is reluctant to do solenoids if it does not fix the issue, but instead replaced the transducer switch which will now allow me to be able to kick down from 2nd to 1st or 3rd to 2nd..
Also suggests that if i can lay my hands on a trans ecu with the same numbers, then this could be worth a shot. However 3 auto wreckers later and parts requests sent nationwide has yet failed to find one.
Coming up to 4 months of limping, 3 reputable auto electricians and 2 trans specialists have whipped there hands clean of this.
Any help would be appreciated.