Check Valve (Power Brake Unit)

WARNING: This page is about a different car, the 1991 Plymouth Laser and 1991 Eagle Talon. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Check valve is press fitted into vacuum hose. DO NOT remove check valve from vacuum hose. Replace check valve and vacuum hose as an assembly.

Remove vacuum hose and check valve assembly. Apply vacuum to end of hose closest to intake manifold. If vacuum holds, replace check valve and hose assembly. Apply vacuum to end of hose closest to power brake unit. If vacuum does not hold, replace check valve and hose assembly.