Chirping/clicking sound from Saab 9-3 and other vehicles' balancing chain

Is your car, especially one with an Ecotec engine, making this noise? Don't panic! It could simply be a plastic guide or tensioner for your balancing chain. To access this part for replacement I strongly recommend The Flying MechanicDIY (no relation)'s easy-to-follow video found here:    • SAAB 93 BALANCE CHAIN MARKINGS & TENSIONER...