Booster Check Valve & Vacuum Hose Inspection (Stealth)
Remove vacuum hose from manifold and air line. Ensure air flows in manifold direction only. Ensure vacuum hose has no cracks or splits. Replace if necessary.
NOTE:
Check valve is press fit into vacuum hose. DO NOT
remove check valve from vacuum hose. If check valve is faulty, replace check valve and vacuum hose as an assembly.