Check Valve Operation Check
WARNING: This page is about a different car, the 2017 Mitsubishi Mirage G4. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
The check valve should not be removed from the vacuum hose.
- Remove the vacuum hose (Refer to
MASTER CYLINDER ASSEMBLY AND BRAKE BOOSTER ASSEMBLY ).CAUTION: If the check valve is defective, replace it as an assembly unit together with the vacuum hose.
- Check the operation of the check valve by using a vacuum pump.
| Vacuum pump connection | Accept/reject criteria |
|---|---|
| Connection at the brake booster side (A) | A negative pressure (vacuum) is created and held. |
| Connection at the intake manifold side (B) | A negative pressure (vacuum) is not created. |