Corolla L4-24L (2AZ-FE) (2010) Engine Rattle/Knock on Cold Start
^ Loosen and remove all camshaft bearing caps. Remove the No.1 camshaft bearing cap and No.2 timing chain vibration damper as an assembly - DO
NOT separate.
^ Remove the intake camshaft with the camshaft gear intact and tie the timing chain to keep tension on the crankshaft timing gear; avoiding separation.
^ Ensure the new camshaft gear is unlocked (advanced position) prior to installation and lock the gear (fully retarded position) AFTER tightening to
proper torque.
Refer to the Technical Information System (TIS) applicable model and model year Repair Manual:
2. Confirm the repair.