90 SC AOD, car shifts fine around town, 1 through 3rd, when I get on the highway OD works fine for about 8-10 minutes at 70mph then all of a sudden slip, bang ba bang bang, quickly throw it in neutral and pull over, once I come to a stop I can bring her back up to 40 or so....then push it up over 45 to let her drop into OD and then its fine but the banging and slipping comes back sooner probably within 2-5 minutes.... This only happened 3 times in an effort to determine if this was a tranny problem or if it was a half shaft or bearing grinding up. I drove it home in 3rd to be safe. Turns out definatley not a half shaft problem. I jacked up the car put it in neutral and tried to sping bother rear tires, there is a squeaking that comes with the spinning of the drive shaft but the noise is coming from the tranny. Rear tires do not spin freely. Ideas? How messed up do you think my tranny is? Car has 56k on it, bought it from original owner with 13k. While in my posession I have only spun the tires by accident in the rain, I have completely babied the car. The only time I have wacked the throttle is in frustration of Rt 128 and Rt 93 traffic in Boston at higher speeds, shifting down from OD to 3rd at about 50\60 mph (not manually via moving the shifter but just by opening her up to WOT). I had the tranny fluid\filter changed at the Ford Dealership locally at 35k miles. Everything was fine until now. The only item I replaced related to the tranny was the plastic grommet on the TV cable. (Broke while removing in order to remove the throttle body to re-torque the lose valve cover bolts), I replaced it with the nice brass one w\clip from Ford. I never adjusted the TV cable, I just put it back the way it was. I was told there is another grommet on the tranny side under the car, could that have popped causing me to fry the tranny? Or mess up the TV cable settings?
Not sure what else I can tell you so that you guys might be able to offer me some advice.
Being a tranny novice, what does the valve body control in the tranny? How would I check it? By reading other posts I thought I might start there.
Thanks in advance.....
Brian
Derry, NH
Not sure what else I can tell you so that you guys might be able to offer me some advice.
Being a tranny novice, what does the valve body control in the tranny? How would I check it? By reading other posts I thought I might start there.
Thanks in advance.....
Brian
Derry, NH