G 2500 3/4 Ton Van L6-250 4.1L VIN D 2-bbl (1982)
Pulsair Valve: Component Tests and General Diagnostics
1. Inspect PULSAIR valve and hoses for leaks and cracks. Replace as necessary.
2. Disconnect PULSAIR hose from valve fitting.
3. Disconnect PULSAIR solenoid from valve--if equipped.
4. Connect a suitable hand held vacuum pump to valve and apply a minimum vacuum of 15 inches Hg to valve.
5. Time vacuum drops from 15 inches to 5 inches of mercury--in less than two seconds--replace PULSAIR valve.
