On/off throttle shudder

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mikiedreb

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My 92 MTX has an annoying habit that I'll try to describe. Most noticable in 3rd, 4th or 5th gear,
crusing at a steady state speed, lift off the throttle and there's a bit of a shudder. Get back on the throttle and it shudders again. Very difficult to accelerate or decelerate smoothly. I replaced the forward front motor mount last year with a reinforced one, although it didn't seem to make much difference. The TPS was just recently replaced, the IAS cleaned. Could this be a fuel delivery issue or just a SHO idiosyncrasy?

Thanks,

Mike

92 MTX, 126k, Stock, Maintained, Tows Well.
 

Mike Kopstain

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In addition to the front motor mount, the other two motor mounts may cause this also, although I would strongly suspect the subframe bushings.
 

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