Diverter Valve
- Check all hoses to diverter valve for cracks, bends or improper routing. Repair or replace hoses as necessary. Pull vacuum hose from diverter valve. With engine running, vacuum must be felt at end of hose.
- Reattach hose to diverter valve. At idle, no air should be coming from diverter valve atmospheric outlet. Open and close throttle quickly. Air should escape from atmospheric outlet for 1-3 seconds. If not, diverter valve is defective.