5.7 Hemi dealer says needs cam and rockers on driver

For the record the ( hemi tick ) is not always the cam/ lifters, if you easily want to know if you have a cam problem cruise about 60 -70 kms , about 35 to 40 mph for you US guys , then coast, ( foot off the gas ) do this preferably past a fence or hedge for the sound to bounce off, roll your window down and listen for what sounds like a card in a bicycle spoke, if you here it, press your trailer tow button which disables the mds if the noise goes away immediately and returns when you push the tow haul button again, you got a problem!