isuzu Workshop Repair Guides

Isuzu Workshop Service and Repair Manuals

Relays and Modules - Brakes and Traction Control > < Vacuum Brake Booster Check Valve|Locations
Page 1
background image

Vacuum Brake Booster Check Valve: Testing and Inspection

Inspecting Check Valve

^

Inspect the check valve, which is located inside the vacuum hose.

^

Air should pass freely from the vacuum booster to the engine.

^

Air should not pass freely from the engine to the vacuum booster. If it does, the check valve is inoperative and must be replaced.

NOTE:  The check valve is a non-serviceable part of the vacuum hose, if defective the hose should be replaced.

Relays and Modules - Brakes and Traction Control > < Vacuum Brake Booster Check Valve|Locations