Problem with my 1991 ford mustang lx transmission.
What is your question?
Every time the transmissi is put into a new gear it shifts hard and makes the car move. When driving the transmissi does not shift hard only when going from park, reverse and drive.
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Idle speed to high? Really need a better description of whet is happening. does this happen while you are "driving"? or shifting from park to reverse or neutral to drive?
Shifting
Shifting while you are driving? or sitting still. please provide more that single word answers, I'm trying to help.
shifting from park to reverse
Idle speed is to high. broken motor or transmission mounts can cause this also.