No.
no
Dodge transmissions do not use vacuum modulators.
There isn't one.
Yes the do it's part of the ETCM ( Electronic Transmission Control Module) and it connects to the engine.
It does not have a modulator.
we need a vacuum diagram for replacement 1997 dodge 1500 4x4
It does not have a modulator
Dodge transmissions do not use vacuum modulators.Dodge transmissions do not use vacuum modulators.
O2 sensor or vacuum leak
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.
under the tranny filter
Answer 1 - Faulty Spark Plug WiresAlthough it's possible, more than likely not. If plug wires are faulty, then that condition should cause the same performance issues [skipping, cutting out, dieing, etc.] regardless of the transmission being in forward or reverse. Often, engine missing when in reverse gear [if the vehicle is equipped with an automatic transmission] indicates a possible vacuum leak in the vacuum line going to the transmission modulator valve, or in the modulator valve itself.