From allpar.com
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- Disconnect the battery to wipe the system memory clean (of course you will lose your radio presets and clock, but that's worth if it fixes the problem).
- Reconnect the battery [after a decent interval] and start the engine.
- Drive trying to maintain a constant medium throttle position as it accelerates up though all four gears (watch your tachometer). If the tranny is working correctly, you should only have to go to 45-50 mph. Do this from a standing start 15 - 20 times. You'll need a couple of miles of lightly travelled two lane.
- With the van below 25 mph, do 5 - 8 wide open throttle kickdowns to
Gary Wats>
I just returned after 5 days on the road and my 92 Grand Caravan was
> shifting improperly on th eway home. As this is a fairly new rebuild I
> suspect that possibly the computer has gone stupid. I recall that there is a
> procedure for re-training it but can't find it in my manual. Is there
> anything specific road procedures other than disconnecting the battery for a
> while to re-boot it?
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