I have the same problem. I took my 03 back to the dealer complaining they gave me the report on the "tick". It says to not try to fix this problem and that all the trucks do this. But because all the motors are different the noise level will vary. Truck still runs great and with only 47,000 on er i think if there is a problem they will figure it out before the 100,000 mile warranty runs out.
Mine also makes a ticking sound but goes away when just a little throttle is applied. Can only hear it from within the cab and it sounds to be coming from the left bank. My 1st thought that it was a loose rocker? Could I just be mistaking for the injector?
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