im doing my 7000 sevice on my 02 they want to charge about almost 500 for the full service which includes valves adjustment spark plug the whole 9, well i told my mechanich to do just the valves and will do the oil and the cooland adjust the chain my self. hes gonna charge me around 250. can i get by just doing the valves or should i pay for the whole thing.. if u have done the valves let me now please.. i need answers.