Skip the auto shop - Our mechanics make house calls

Q: Loud metal to metal thud sound when turning and changing gears

asked by on

If i turn or punch the gas a loud sound thumps. It sounds like the catalytic converter pops up and hits the body of my car, I'm sure that's not it but that's what sounds like. Also when am accelerating then I let go of the gas, sometimes it'll feel like the brakes are pumpes then let go.

My car has 175000 miles.
My car has an automatic transmission.

Hi there, thanks for writing in.

If you’re getting a loud banging on acceleration, I would say it sounds like you have worn engine or transmission mounts, or perhaps a worn torque arm bushing that mounts the solid rear axle to the body of the car. Worn engine or transmission mounts would allow entire engine to shift enough that part of it could contact a cross member or part of the body. If the solid rear axle was loose at all from a worn torque arm bushing, it could make a banging noise as it shifts position on the car. Any of these could cause symptoms like you described, though these are certainly not the only possibilities. I suggest that you have a qualified professional, such as one from YourMechanic, drive your car and diagnose the noise for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Why would transmission fluid shoot out of trans into the bell housing? is there a gasket or seal there had trans looked at and 👌

Hi there. There are multiple seals and gaskets inside an automatic transmission and along the inner case where the torque converter is installed that can leak into the bell housing if they are damaged. Small cracks or misalignment of the...

Q: Fan runs when car is off. Overheats when idling for a 3-minute period

Hey there. This can be caused by a number of things such as low coolant levels, a faulty thermostat, or a failing coolant fan switch. As you may know, the coolant fan switch helps to maintain the proper coolant temperature...

Q: engine cranks in any gear

The function of the neutral-safety switch is to make sure the vehicle can only be started in Park or Neutral. This is similar in function to having to depress the clutch pedal to start a manual transmission-equiped vehicle. It prevents...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...