Check Valve Operation Check
- Remove the check valve (Refer to REMOVAL AND INSTALLATION < EXCEPT RALLIART >
or REMOVAL AND INSTALLATION < RALLIART >
).CAUTION: Replace the check valve when it is faulty.
- Using a vacuum pump, check operation of the check valve.
Vacuum pump connection Normal condition When connected to the booster side (1) Vacuum is generated and maintained. When connected to the engine side (2) No vacuum is generated.