Vacuum Tank and One-Way Check Valve Inspection

Vacuum Tank and One-Way Check Valve Inspection
Check vacuum tank and one-way check valve according to the following procedure.
1) Disconnect vacuum hose (1) from IMT vacuum solenoid valve and connect special tool to vacuum hose (1).
Special Tool
(A): 09915-67311





2) Run engine at specified idle speed and check that engine vacuum is standard value.
3) Stop engine and check that engine vacuum is held for longer than one minute.
If any abnormality is found, replace intake manifold assembly.