This article is from the Chrysler-Plymouth-Dodge FAQ, by Dr. David Zatz with numerous contributions by others.
Herbert DaSilva <hsd@swl.msd.ray.com> writes:
(Problem: Noise happens on left hand turns and some bumps. Was
originally chirping noise, but now more of a rumble. More frequent. Car:
1987 Shadow 2.2, five-speed, 110K miles.)
Isolate the problem with the following test:
1. - Select an off-ramp or empty parking lot where you can attain some
velocity while maintaining a left hand turn when the noise is evident.
2. - Clutch in or slip the tranny into neutral and pump the gas pedal to
rev the engine. If the noise does not change tone when the engine is
revved, the problem is in your driveline. If the noise changes tone
with the speed of the engine, the passenger side engine mount has
probably collapsed.
 
Continue to: