135K on my daughters 99 Duratec. Starting to slip badly. No rhyme or reason to when it doesn't. Anytime it wants in any gear it wants. I have a BAD feeling it is on its way out. How much does a rebuild typically cost on these?
i was quoted $1700 for a full rebuild, that would replace almost everything but the case and give me a 7 year/50k or a 3 year 75k warranty, at a reputable trans shop near me, i said no thanks that's more than i paid for the car. however on my 92 sable when the trans started slipping i used valvoline high mileage trans fluid and it cleared it up, you might could try a flush with this and see what happens, at worst your out $100 or so and if it works you might can hold off on the rebuild.