I drive a GT, it's in my sig. Lately, I have noticed a pretty faint clunk noise when coming to a complete stop at stop signs/traffic lights. It's not bad to the point I can feel it but I can hear it if the music is off. So I thought I would investigate.
Jacked up front end and pulled fuse for AWD so the car wouldn't take off. I found I can recreate the noise easily two ways. First way is to hold the brakes tight and shift between drive and reverse and back again. The change in drive direction brings about the noise. The noise is loudest where the axle inserts into the transmission and you can also notice the axle does look like the culprit of the clunk (loudest near there). For some reason, I did not think of listening closely to the passenger axle. These videos are of the driver axle and transmission torque mount as I shift like this D-R-D-R-wash-rinse-repeat
Next way to recreate sound was to let the wheels run in drive then brake abruptly. This is more the fashion in which I hear the noise while driving. It's louder this way because you add the momentum of the wheels. To me, the transmission mount seems acceptable but I have never seen a really bad one before.
Went out for a test drive for some troubleshooting. Noticed there is no clunk if I shift into neutral before coming to a stop so this will only happen in gear. That seemed significant to me. I can sometimes get a faint clunk during shifts but only sometimes. I tried downshifting from 3rd to 2nd and I think I got it to do it once. Checked axle bolts when I got home and they were both tight but I backed them off and retightened to 50nm anyway but ave not tested the car since so that may have contributed but it seems more like play where the axle meets the transmission.
Thoughts? and thanks in advance!
Jacked up front end and pulled fuse for AWD so the car wouldn't take off. I found I can recreate the noise easily two ways. First way is to hold the brakes tight and shift between drive and reverse and back again. The change in drive direction brings about the noise. The noise is loudest where the axle inserts into the transmission and you can also notice the axle does look like the culprit of the clunk (loudest near there). For some reason, I did not think of listening closely to the passenger axle. These videos are of the driver axle and transmission torque mount as I shift like this D-R-D-R-wash-rinse-repeat
Next way to recreate sound was to let the wheels run in drive then brake abruptly. This is more the fashion in which I hear the noise while driving. It's louder this way because you add the momentum of the wheels. To me, the transmission mount seems acceptable but I have never seen a really bad one before.
Went out for a test drive for some troubleshooting. Noticed there is no clunk if I shift into neutral before coming to a stop so this will only happen in gear. That seemed significant to me. I can sometimes get a faint clunk during shifts but only sometimes. I tried downshifting from 3rd to 2nd and I think I got it to do it once. Checked axle bolts when I got home and they were both tight but I backed them off and retightened to 50nm anyway but ave not tested the car since so that may have contributed but it seems more like play where the axle meets the transmission.
Thoughts? and thanks in advance!