Vacuum Brake Booster Check Valve: Service and Repair

Removal and Installation

CAUTION: When installing vacuum hoses, pay attention to the following points.
^ Do not apply any oil or lubricants to vacuum hose with check valve.





^ Insert vacuum tube into vacuum hose as shown.
^ Install vacuum hose with internal check valve, paying attention to its direction.

Inspection
HOSES AND CONNECTORS
Check vacuum lines and connections for airtightness, improper attachment, chafing and deterioration.

CHECK VALVE





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Check vacuum with a vacuum pump.