The transmission selenoid/vaccuum module needs checked or perhaps the torque converter is getting bad. A vaccuum leak might do this, also.
It could be your front strut mounts need to be replaced. The rubber inside the strut mounts, wears out. You will hear the noise when u drive over bumps and uneven surfaces. my 2004 grand am se1 4 door ,with the 3.4 v6 engine and automatic transmission, needs the front strut mounts replaced.
Check the motor mounts. If rough when going from Park to reverse or even when in drive it's possible broken mount is the reason. Had same issue and replaced mounts and no more problems
You might have a broken motor mount or broken transmission mount. the motor mounts were replaced one year ago.
Immediately replace it with a hard drive that does not randomly lock up.
could be bad mounts on either the tranny or engine?
The alternator on a Chrysler 300m can be replaced by disconnecting the battery, removing the wiring harness from the alternator, and then unbolting it from the mounts. The drive belt can then be slipped off and a new alternator put into place.
sequentially
I just replaced my back engine mounts on my 2003 mitsh. lancer. It cost me $214 at a Mitsubishi dealership in Queens, NY. Unfortunately, I had to go to the dealership because no other auto store or shop had the parts. My engine & car was jumping/jerking whenever the car was in reverse or drive. Scary. After I got the back mounts on (because there's two - front and back). Now I have a stuttering/jerking problem but based on diagnostic test it's my coils that have to be replaced.. oh boy :)
Sequentially
how to fix broken concrete drive way be repaired or does it have to be replaced?
check the throttle body, and clear the MAF sensor using a contact cleaner
I had this happen on my 2002 Cinco at 40,000 miles. They replaced the motor mounts under warranty, and it fixed the shaking.