You might have a speed sensor that is starting to go bad, or has a bad spot in it. The computer needs the vehicle speed info to determine the shift points. You might want to have that looked into.
Tim
I've got a '99 F-350 pickup with 57,000 miles, automatic transmission, and a
> V10 engine that exhibited a strange symptom just one time. It was having
> trouble or hesitation shifting into second. The shift was delayed, and when
> it did shift in, it clunked in hard. I noticed also that the speedometer was
> saying 0 miles per hour the whole time. Interestingly, when I parked the
> car, and restarted it a few minutes later, the problem was gone and has
> never come back after having now driven it at least a hundred more times.
> Any ideas what this might be and whether it might come back?
> Thanks,
> - Jeff Napier
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