rg3

car seems to not go into o/d & vibration in accel. pedal........70k mi......

RJ_RS_SS_350

The accelerator pedal is drive by wire, so that's no help to find the vibration. Is the vibration all the time; only when moving; changes with engine speed; changes with vehicle speed; seem to be on one side of the vehicle more than the other?

donbrew

Check Engine Light? Flex pipe? Recent work? Unrelated events?

rg3

have wheels off...brakes 50%...&yea saw tps @ pedal...out of ideas....vib all time when moving

rg3

no light...2k mi trip..... Hit bird....oil CNG only....

Oldblue

Have a close look at the rear transmission mount and upper engine mount.

RJ_RS_SS_350

Such a brief answer, I'll have to guess what it means, and you can correct me if I'm wrong.

It vibrates only when moving, so it does not vibrate at idle. Other than that, it is not affected by engine speed or vehicle speed. You cannot determine if it is specific to either side. Oh, and the vibration is felt in the accelerator pedal and nowhere else.

If all this is true, it might not be related to the drivetrain(engine, trans, axles, hubs, tires). Maybe a loose (exhaust?) component near the accelerator pedal.

Oldblue

Like the flex pipe as Don suggests

rg3

MTS look OK....

rg3

Wife drives only.... Seems a drag on car , can't feel it shift into O.D. no exhaust leaks.....