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The real problem is manually shifting from gear to gear with an automatic transmission. If you are referring to the automatic upshift, there may be a problem with the EGR system or vacuum system.
a broken dip stick wont cause hard shifting... the engine does not do the any shifting... your problem would be the transmission... check transmission....
those had a problem with a vehicle speed sensor but your throttle position sensor can do it too
A transmission that is sticking would cause a 1997 Plymouth Grand Voyager to die after shifting it into gear. A problem with the ignition system could also cause this.
Typically, a bad "speed sensor" will provide an incorrect voltage input to the vehicles computer. That, in hand, would cause a problem in the speed-o-meter reading, as well as shifting problems.
your fuel pump can be broken or your fuel injectors...
The speed sensor needs replaced. It is on the trans.
Having the same problem with mine!
There may be a problem with the oxygen sensor that would cause this issue. There may also be a problem with the idle arm censor as well.
Try changeing the fuel filter,I had the same problem and it helped.
The transmission computer has detected a malfunction. You need to have it checked for codes.
This is a common problem on the B3500 van. The first thing to do is wiggle and jiggle the shifter. There is an adjustment in the automatic transmission shifting linkage. A mechanic adjusted this when I bought my 1998 1 ton Dodge van (it had the problem at only 18k miles).