I have an 03 dodge. 3500 with the turbo Diesel. I have this "clicking" noise from the drivers side when the engine gets up to and over 2000 rpm. I can't figure out what it would be. Any help would be great.

 

Is it from the engine compartment? or cab

 

It is coming from the engine on the drivers side

 

Do you have any power adders on your truck? Is this only under WOT? I ha something similiar happening with mine. Mine only occurred under full throttle situations. Mine turned out to be the head gasket starting to go bad. It seemed like a clicking noise that I could not figure out until the head gasket finally really blew out.