Vacuum Brake Booster Check Valve: Testing and Inspection
OPERATION TEST
1. Remove the booster hose from the check valve.
2. Start the engine.
3. Plug the check valve hole with a finger.
4. Check on the basis of finger touch that vacuum is present.
OPERATION TEST
1. Remove the booster hose from the check valve.
2. Start the engine.
3. Plug the check valve hole with a finger.
4. Check on the basis of finger touch that vacuum is present.