HOW TO DO A TUNE UP ON A CADILLAC STS V6

On this episode I'm gonna show you how to do a tune up on a 2005 Cadillac STS by replacing the spark plugs with nitrod spark plugs I said Nitro but it's nitrod spark plugs. I'll also will clean throttle body clean the manifold replace the air filter with K&N air filter and clean the mass air flow sensor. I'll show you step-by-step how to do this thank you for watching and enjoy.