G 2500 3/4 Ton Van V8-305 5.0L VIN M SFI (1997)
Vacuum Brake Booster Check Valve: Description and Operation
Vacuum is supplied to the power brake booster by a valve located on the intake manifold. A flexible hose connects the port to the power brake booster
check valve. The power brake booster check valve mounts to a grommet on the front of the power brake booster.
