Chirping or squeak sound while driving

[jeepguy4276]

When I'm driving I get an intermittent chirping or squeak type sound. It sounds like belt chirp but I'm not sure it is. It only happens when moving. If I rev the engine at a stop or parked there is no sounds. I start moving and it starts again. Doesn't seem to be effected by speed much, just moving.

My thought was the belt tensioner is weak but since it doesn't always happen and only happens when moving, I'm questioning that now. It's an '02 3.7.

Any thoughts on what it might be? Am I still right by thinking it's the belt tensioner?

 

[uss2defiant]

could it be that rear CV of the front drive shaft?
not sure since you mentioned that the sound doesn't change with speed.

 

[renegade 04]

What you are describing sounds like belt slippage under load.