Transmissions and Drivetrains
Transmission Fluid
Toyota Sienna

What could cause a 1998 Toyota Sienna to hit hard and sputter a bit when the transmission downshifts from 3rd to 2nd or 1st Could it be an electronic adjustment or is the transmission failing?



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It seems to me that it could be the transmission going bad I am not 100% sure. Visit I am sure you can get better answers there.