Originally posted by BedlamsBest:
My car does the exact same thing. I took it to the place where the transmission was rebuilt several times because of this. It seems to start blinking when I am driving around for a while, especially in top gear. After the light starts blinking, it shifts really hard, eventually going back to normal. The transmission place said that they didnt know what was wrong with it, and when they ran the diagnostic, the only thing that came up was my EGR (which I still havent replaced) SO I don't know. I know that this car has 125,000 miles on it, and I am about halfway saved for my new car. I just hope it lasts until then.
The reason why they don't know is because they "did not run a diagnostic scan" of the tranny. Like I mentioned eariler in this article, they will have to hook a scanner (not just a code reader) to the OBDII port and run the car until the fault occurs. That is the only way you will ever find out what the problem is or the code anyway.
Good luck! Any other questions? Let me know. 
Phillip Jackson
`98 Mystique LS
262K+ and counting...
ATX rebuilt @ 151K
"This storm has broken me, my only friend!" RIP Dime
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