Noises problem
1996 Dodge Ram V8 Four Wheel Drive Automatic 232000 miles
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My Dodge Ram starts and runs quietly. Once the motor is fully warmed up (5-10 minutes) I hear a very noticeable tapping noise from the right side valve cover, the hotter it is the louder it gets. I've changed the oil twice and removed the valve cover to check the rocker arms. Could this be a lifter issue?