2004 MPV Hard Slam/Shift @ 20-30mph

Hi,

I have a newly acquired MPV that slams hard into gear between 20-30 mph, if you lightly touch the gas is doesn't happen, if you jump on the gas it doesn't happen. Only occurs on avgerage acceleration. I wanted to go to the dealer with info in hand so they don't balk. I have heard rumors of tranmission module reflashing.

ANY words of wisdom are appreciated...Thanks Kev

Yes, it is a common problem and dealer can reprogram tranny with latest update to fix the problem.

Yes, it is a common problem and dealer can reprogram tranny with latest update to fix the problem.

Thanks

Went to the dealer today, and the service tech mentioned that a there is a recall to "re-flash the firmware" on the transmission module. Hopefully that will end the only problem we have encountered with this great little van...... :grinyes:

Did the dealer fix the problem? Our 2001 at 61,000 is starting to shift harder under "normal" acceleration otherwise its fine.

there aren't any shift-related software reprograms for the 2001 mpv

I'm seeing similar problem with 2003. Any comment on the 2003 model?