I have a 96 mercury sable when istop it shifts to neutral

A bigger transaxle problem is coming soon

The avg life of a taurus/sable transaxle is 65,000 miles

sounds like a mass air flow sensor

are u sure its not a cracked fly wheel,,did the converter bolt up to the fly wheel ok,,

Have you tried replacing the speed sensor? Also is your car a column shift or floor shifter? If it is a column shifter make sure to inspect your linkage between the shifter and the tranny.

flywheel needs replaced; or linkage is loose; Could be low on fluid

Your linkage could be loose; low on transmission fluid; or you need a new flywheel

If you have checked Power/Ground, and alls good look toward the Multi-Function Sw. (turn sig.sw) this is where everything get distributed at...as for your power loss when shifting, is it column/floor shifter ???? need to know....

Your transmission torque converter lock up clutch is not unlocking, that kills the engine and is the cause of the OD light flashing.

VSS (vehicle speed sensor) Tells the PCM (computer) the speed of the vehicle so the PCM can make the proper information to the TCM (transmission control module) to shift.
YOU are goin gto need a scan tool NOt a code reader to monitor the VSS to see what it is putting out for speed when the car is moving But I believe you need a VSS but do not not Go out and buy one until you have had it tested , and can positively confrim it is bad first. Please rate this a fixya if you find this advice helpful, Thanks Randy

i have 1996 mercury sable wagon has elecrical problem and it cause to stall when am driving as soon i stop and sometime the gas without step on goes high and then low like it goes off.also running light when i shut the car still on so [please someone help