Driven by the crankshaft, the camshaft has multiple elliptical lobes (cams), one for each intake and exhaust valve contained in the engine. As the camshaft rotates, the lobes regulate the opening and closing of the valves.

Symptoms of Wear or Failure

  • Abnormal noise from the valve train
  • Engine misfires

Related Repair Advice

  • The camshaft oil seals should be inspected and replaced as necessary when the timing belt is replaced