1989 Taurus Aod ,doa

[1954CUSTOMLINE]

I HAVE A 89 TAURUS WAGON THAT JUST HAS NO REVERSE OR FORWARD .IT WAS OK WHEN PARKED THE NIGHT BEFORE ,THIS MORNING NO GO.HAS BEEN ACTING UP WHEN PULLING OUT FROME STOP AND GOING AROUD CORNER IT WOULD ACT LIKE IT WAS IN NEUTRAL THAN GO INTO GEAR WHEN I LEAVE UP ON THE GAS.
I DROPPED THE PAN AND FILTER IS IN PLACE (WAS REPLACED ABOUT 4 MONTHS AGO ALONG WITH FLUID) BUT HAD A DARK STREAK IN THE FLUID LEFT IN BOTTOM OF PAN AFTER I DRAINED IT.( I HAVE A DRAIN PLUG IN PAN SO I CAN CHANGE FLUID WHEN I CHANGE OIL EVER 2000 MILES)
THE FLUID LEVEL WAS FINE AND THE FLUID DOESN'T SMELL BURNED AND I CAN SEE NO PROBLEMS WITH PAN OFF OTHER THAN THE DARK STREAK WHICH MAY BE FROM A BAND TAHT IS BURNED OUT?
I HAVE A LIMIT AMOUNT OF EXPERIENCE WITH AUTOMATIC TRANSMISSIONS AS MOST OF MY CARS WERE STICK OF WHICH I HAVE REBUILT SEVERAL.
THIS FRONT WHEEL DRIVE IS ALL NEW TO ME.
IT LOOKS TO ME THAT PULLING THIS TRANS IS A REAL PAIN TNAT REQUIRES LIFTING THE ENGINE AND REMOVING A LOT OF PARTS THAT I REALLY DON'T FEEL LIKE DOING.
ANY SUGGESTIONS WOULD ME HELPFUL.

[RexNfx400]

The valve body and the pump shaft sound like the main culprit. The pump shaft wears deep grooves into a sleeve and loses oil pressure. Also if it hasn't been rebuilt in the last 8 or 9 years.Theres a piston that breaks that needs to be updated to steel. The nuetral on turns is so very common for these valve bodies. Sometimes people put in 3 or 4 qts over full and they work again.

The tranny comes out the bottom...After you remove the complete frame/engine cradle.

Good luck

[1954CUSTOMLINE]

THANK FOR THE REPLY.
monday I put it on blocks till I have time to get to it.The tires were new and my wifes Aerostar is in need of skins so I am switching tires this week.
I may part out the wagon on e-bay.
what a shame it is very clean and got 27 MPG.
May still fix it but I am not into it wright now. Thanks again.