It could posibly be a bad transmission mount or a universal joint on the drive shaft or even maybe loose torque converter bolts
Vrrrrrrroommm If the driver puts his foot down. Brrrr-clunk-rrrrr-clunk-rrrrrrrrr With added gear changes.
If the clunk is most noticeable at takeoff or when coming to a stop, the u-joints on the drive shaft probably need to be replaced.
Possibly weak u-joints or transmission mounts
That may be exactly what is happening. You may be accelerating at the moment it is trying to complete the downshift and you catch it between gears.That may be exactly what is happening. You may be accelerating at the moment it is trying to complete the downshift and you catch it between gears.
You need to use the clutch and the shifter smoothly together!
most likely the U joint
Are you sure it is the transmission that is clunking? It could be the u-joints on the drive shaft that are making the noise. When the u-joints on the drive shaft are bad, there is an audble clunk when you accelerate and when slowing down (basically the same motions you go through when shifting gears).
I had the same problem. The dealer replaced the engine mounts at $550.
One clunk when accelerating (but now repeated clunks) and another when braking can be caused by broken motor mounts.
The Transmission needs SERVICED A.S.A.P Hope This Helps.
Just out of curiousity, how is the transmission in this vehicle. Could the transmission be out of sync with the engine? This has happened to me when i had the transmission replaced in a dodge caravan, Good Luck