Check Valve
Check valve is located in hose from intake manifold to vacuum reservoir. Remove check valve. Blow air through each side of check valve. Air should hold only on side toward reservoir. Replace check valve if air does not hold.
Check valve is located in hose from intake manifold to vacuum reservoir. Remove check valve. Blow air through each side of check valve. Air should hold only on side toward reservoir. Replace check valve if air does not hold.