Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Emission Control System: On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. VISUALLY CHECK HOSES, CONNECTIONS AND GASKETS (a) Visually check that the hoses, connections and gaskets have no cracks, leaks or damage. NOTICE: Detachment or other problems with the engine oil level dipstick, oil filler cap sub-assembly, ventilation hose or other ...
