I have a 2000 disco II w/ just over 25K miles on it. I have noticed that it is tapping and I was wondering if this is a normal thing. My wife says it cant be heard over the radio but can be heard when it is shut off. I have an Acura as well and honda/acura engines are notorius for there "tap". I was wondering if this is the case with the 4.0 V8 that 'rover uses.