On my 1990 B250 318 V8 van, I recently had both U-joints replaced and a complete transmission flush, refill, filter and gasket job with ATF+4. I'm pretty sure that this is the first time for a flush and refill. I feel that the shop is quite reputable. The mechanic mentioned that there was "alot of metal in the pan". The transmission did not slip or act funny prior to the flush/refill. Now when it is cold, the transmission will hesitate and slip a bit. Once it warms up, back to normal. Smooth sailing. Should I go back and ask them to adjust the transmission bands? It is not leaking nor is the fluid low. Am I looking at a potential rebuild?/replacement? Any input would be very helpful.
CHEERS!
roberson
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It could be because they used ATF+4, which is a synthetic fluid. Although ATF+4 can be used, the tranny did not have it in it's system until recently. Your tranny just might have to live on ATF+3, which is not a synthetic fluid.
Thanks for your reply, would you suggest that I return to the transmission shop and have them re-flush, filter, gasket, and fill with ATF+3? Is ATF+3 still available? Also should I assume that I do not need to adjust the transmission bands and that it is just a fluid issue?
Thanks again!
roberson
I would first talk to them about the symptoms and see if they have any ideas. Adjusting the bands are standard practice whenever the fluid/filter is changed. If they didn't adjust the bands, they should have.
On my 1990 B250 318 V8 van, I recently had both U-joints replaced and a complete transmission flush, refill, filter and gasket job with ATF+4. I'm pretty sure that this is the first time for a flush and refill. I feel that the shop is quite reputable. The mechanic mentioned that there was "alot of metal in the pan". The transmission did not slip or act funny prior to the flush/refill. Now when it is cold, the transmission will hesitate and slip a bit. Once it warms up, back to normal. Smooth sailing. Should I go back and ask them to adjust the transmission bands? It is not leaking nor is the fluid low. Am I looking at a potential rebuild?/replacement? Any input would be very helpful.
CHEERS!
roberson
Hi Roberson, I had a 250 94 Dodgeram with 115k and the tranny would slip a little when cold. I went to a supposedly very good transmisson man and he told me that the reason it was slipping was because thev torque converter didn't staart circulating the fluid until it was taken out of park. So maybe you could try taking it out of park after cranking and let it warm up a little first... It worked for me...god luck..
cold transmission slipage
