1996 Mercury Sable transmission problems

Defect

THE AUTOMATIC TRANSMISSION PARK PAWL SHAFT MAY NOT BE FREE TO ROTATE AS INTENDED. IF THE PARK PAWL SHAFT DOES NOT ROTATE, IT WOULD PREVENT THE PARK PAWL FROM ENGAGING THE PARK GEAR WHEN THE SHIFT LEVER IS IN THE PARK POSITION.

Consequence

THIS CONDITION COULD RESULT IN THE VEHICLE ROLLING AS IF IN NEUTRAL WITH THE SHIFT LEVER IN THE PARK POSITION.

Remedy

DEALERS WILL INSPECT THE PARK PAWL SHAFT ROTATION AND THOSE SHAFTS WITH RESTRICTED ROTATION WILL BE REPLACED WITH A SHORTER SHAFT THAT WILL NOT RESTRICT ROTATION.

Defect

THE PARK PAWL ABUTMENT BRACKET HAS A SHARP EDGE WHICH CAN CAUSE THE PARKING PAWL TO HANG UP AND NOT ENGAGE THE PARK GEAR. THIS WOULD ALLOW THE VEHICLE TO MOVE EVEN THOUGH THE GEAR SHIFT INDICATOR SHOWS THAT THE VEHICLE IS IN PARK.

Consequence

UNINTENDED AND UNEXPECTED VEHICLE MOVEMENT CAN RESULT IN PERSONAL INJURY AND PROPERTY DAMAGE.

Remedy

DEALERS WILL INSPECT AND, IF NECESSARY, REPLACE THE PARK PAWL ABUTMENT BRACKET.

Defect

THE PARK PAWL SHAFT WAS IMPROPERLY POSITIONED WHEN THE ROLL PIN THAT RETAINS IT WAS INSTALLED DURING TRANSMISSION ASSEMBLY. IF THE SHAFT WAS NOT PROPERLY POSITIONED, THE ROLL PIN MAY NOT HAVE LINED UP WITH THE GROOVE IN THE SHAFT AND HAVE BEEN CRUSHED AT ASSEMBLY. ALSO, A BURR COULD HAVE BEEN RAISED ON THE SHAFT.

Consequence

THIS COULD RESULT IN THE PARK PAWL OCCASIONALLY NOT ENGAGING WHEN THE TRANSMISSION SELECTOR LEVER IS PLACED IN THE PARK POSITION. THIS COULD RESULT IN THE VEHICLE ROLLING AS IF IN NEUTRAL IF THE VEHICLE OPERATOR DOES NOT APPLY THE PARKING BRAKE.

Remedy

DEALERS WILL INSPECT THE PARK PAWL SHAFT ROLL PIN. IF THE ROLL PIN IS DAMAGED, BOTH THE ROLL PIN AND THE PARK PAWL SHAFT WILL BE REPLACED. IN ADDITION, OWNERS WILL BE REMINDED TO FULLY APPLY THE PARKING BRAKE, IN ADDITION TO PLACING THE TRANSMISSION IN PARK.