B350 1 Ton Van V8-5.9L VIN Z (1992)
Air Injection Relief Valve: Description and Operation
Air Switch Relief Valve Solenoid
EGR/Air Switching/Canister Purge Solenoids Vacuum Connections
OPERATION
The switch/relief valve solenoid is a vacuum operated solenoid that controls the operation of the switch/relief valve. The vacuum operated
solenoid is part of a vacuum trio located on the right valve cover, near the firewall.
