I have a 2007 Nissan Murano with 202,000 km on it. when I take it out of park the car starts to shake. the shake increases the more I press on the gas, thinking it is a U- joint but not sure
Try checking all the motor mounts and if the driveshaft has play in it then it is the u joints.
The motor mounts could be rotted out or broken so check them. If that is not it then check the suspension for any play.
Sounds like a motor mount issue. The belt side motor mounts on those are more common to split and cause the engine to sag and cause that concern.
Check the transmission mounts too.
U-joints only vibrate when you're driving down the road
Scotty answered similar question about same car with same mileage at 9:04
https://www.youtube.com/watch?v=VVjfpAdJcLE
