get under there and check the torque on the bolts.

 

sounds like motor mounts.

 

Hi, i have a 2000 ram 1500 4X4 (5.9) w/ a 3 in. body, 3 in. suspension lift and my driver side motor has gone out, i suspect the culprit is power steering fluid as i had a major leak from the pump and hoses. i think the PS fluid damaged the rubber part of the motor mount, making it soft and not able to support the engine. also i think it may have effected my transmission. i bought a new motor mount from auto zone for i think $40 and am currently in the process of changing it out, ill post my results when im finished, hopefully today...