Well if you did some searching, some say either the transmission range sensor or the vehicle speed sensor or maybe the wiring to the sensors.
I have done a lot of searching on this site and haven't really found the answer. It has an AX4N I can shift the lever in any of the gears, but it wont shift out of 1st to any higher gears. 1st and reverse are the only gears that work. I changed the fluid and filter and it still does it. The...www.taurusclub.com
I have a 98 ax4n, I've replaced fluid, filter, vss, shift solenoid C, and nss. problem started as hard shifts, then after highway driving for 120 miles, it wouldn't shift out of 2nd until I stopped the car, shifted through all gears, then it was fine. transmission then started emitting a high...www.taurusclub.com
I had the same tranny in the same year Taurus, I towed a boat, probably not the best idea. I trashed several trannies, Thankfully, someone rear-ended it while sitting parked in front of my house. Their insurance paid well to total it.The vehicle in question is a 1995 Ford Taurus w/ 3.0L engine and AX4S/OD transmission, and it has 79K miles on it. It has been a grocery-getter for my aunt the last couple of years until the other day when it vomited all its transmission fluid during a highway trip. She limped it into the next town with smoke billowing out from the hood and barely able to move forward under its own power.
I showed up on scene and could see a puddle of trans fluid on the ground under the car, but the car still started and idled backward and forward when put into gear, so I grabbed a tow strap and pulled it to a buddy's shop where it sits now, waiting on me to decide what will become of it (gave aunt my other Charger, so she will no longer be driving this Taurus).
My first thought was to replace the transmission with a used one from a salvage yard and try to sell the car, but the prospect of spending several hundred dollars on a used transmission and then swapping it out just to get the car to a point where I can sell it for some meager amount doesn't sound appealing. So I have pretty much ruled out that approach.
Another option would be to sell the car for scrap and be done with it. The ease of that option is certainly appealing, but the relatively small amount of return gives me pause. I'm guessing I would get $200 or so for it, which is barely enough to cover the expense of me driving down there to do all this.
The remaining option seems to be try to figure out what happened to cause the trans to upchuck its fluid, fix/repair that, fill it up with fluid and hope it drives well enough to sell off as-is.
In pursuit of that goal, and keeping in mind I'm not a Ford expert, I have some questions I hope to find answers for here:
1) is there an inherent flaw or weak part on the AX4S transmission that leads to it puking up its fluid for any reason? If so, could a used replacement be hardened to prevent a recurrence on that unit?
(The dipstick was still in place, and without blowing that thing out to expel the fluid, I am at a loss to explain how the fluid got outside the transmission in the first place.)
2) what kind of ATF do those transmissions need to work properly?
(I've seen Type III/H and Mercon listed as the spec'd fluids, as well as multi-vehicle types like Maxlife and others. Any clarification is welcome.)
3) How difficult of a job would replacing the transmission be for someone who knows their way around a car fairly well but will be limited to hand tools and jack stands for such a task?
(if it comes down to it, I guess I can replace the trans with another one, but I really do not want to if I can avoid it at all costs.)