Should You Have To Replace It It Should Cost Little Due To Infact That Gm Still Uses The 3800 Series Engines My Aunts Pontiac Grandpirx Came Out To 56 Bucks At Autozone You Will Probably Hear A Scratching Sound If It Does Go Bad. If Id Does Brake While Driving Good Luck. It May Cause Sever Engine Damage And Costly Repairs. If It Has Not Been Replaced And You Have No Other Problems Or Other Reasons Have It Checked Out And Possibly Replaced By The Way In Some Engines With The C Code And 3800 Series They Have Plastic Guides That Tend To Break And Some Have Plastic Cam Sprockets.