1.
Remove the vacuum hose.
note
The check valve is press-fitted inside the vacuum hose at the position of the marking.
When checking the check valve, keep the check valve fit in the vacuum hose.
Remove the vacuum hose.
The check valve is press-fitted inside the vacuum hose at the position of the marking.
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 brake booster side (B) | A negative pressure (vacuum) is not created |
If the check valve is defective, replace it if an assembly unit together with the vacuum hose.
