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View Full Version : 4EAT knocking sound? WITH VIDEO



aurelius
03-09-2010, 08:40 AM
I recently got a loud knocking sound in my transmission that's worrying me. It has a continuous knock that cycles through low to high volume every second or so. It's audible from outside the car and slightly in the car with a window down.

When stationary, I can cycle from N to the others fine except to D. When I went from N to D, the revs will drop rapidly to near stall and a whining noise will now be audible.

Could it be a shot transmission bearing? Loose torque converter bolt?

http://www.youtube.com/watch?v=IxiKRrwaO-g

There's also a whine when go into drive but I forgot to tape it.

Robbks
03-09-2010, 08:22 PM
could be a TC bolt...?
it's a mechanical "knock" as oppose to a solenoid "tap" sound

any chance of some audio/ video?

aurelius
03-09-2010, 10:01 PM
I'll upload a video tonight