Volvo 200 » Air Intake Hose

The plastic intake hose, located between the air mass meter and the throttle body, is often overlooked. It's easy to miss a failed hose because the hose chafes against the inner fender and rubs through in an area that is not visible without removal. When doing a tune up, always check the hose by moving it away from the fender to inspect the ribs. You will see if the ribs are chafed through by flexing the hose away from you. Replace the hose if necessary, and prevent future chafing by using a putty like butyl to insulate the hose from the fender.