What do you do when your transmission clunks?
Put the emergency brake on and your truck in neutral. Putting blocks behind and in front of a wheel is extra insurance. Grab the drive shaft as well as the differential yoke, turn it one way and then the other. Look and listen for slack in the u-joints. You will be able to tell if one is loose. That is the culprit.
Why does my car clunk when I change gears?
Eric-the-car-guy writes on his website (regarding automatic transmission noises): “If you get a clunk or bump when you change gears or go from drive to reverse, check the engine and transmission mounts. These sounds are often a classic symptom of this condition.”
Why does my Chevy Silverado drive shaft clunk?
The u-joint is a component in the middle of your truck’s drive shaft that allows the drive shaft to flex or rotate, which is based on rough pavement or suspension movement. The joint can fail, causing binding and (ultimately) will damage the drive shaft beyond repair.
Why do I get a big clunk when shifting out of Park?
If the mounts are good and you get a big clunk then yes it may be a sign of transmission trouble developing. The mounts were installed by a mechanic acquaintance, but I bought and parts and they looked fine.
Why does my transmission clunk when I put the car into gear?
When you put your transmission into gear, it puts a load on your drivetrain which in turn loads up your suspension getting the vehicle ready to move. This can cause a clunking sound if any of the below conditions are true.
Why does my car make a heavy clunk when I reverse?
Listen for a heavy clunk when shifting from neutral to reverse and back again. Check the transmission cross member mount (rubber dampers) for excessive wear or splits. A noticeable vibration in the chassis frame during the heavy clunk will point more toward a defective transmission mount rather than a torque converter problem.
When do you go from neutral to 1st gear?
Hard to avoid somewhat of a clank or slight jerk when going from neutral to 1st. There is always some slack between the transmission shaft and the gear internal splines. Slack between the gears, slack here and there, even though it is just a few thousandts of an inch will all add up to a small “clunk”.
What kind of noises do you hear when you shift gears?
Use some fast acceleration, allowing the transmission to firmly shift. Listen for any rumbling, growling or mechanical metal-to-to metal noise in each gear just after it shifts. Such noises indicate problems with the individual planetary gears, input shaft or interior transmission bearings.