Air Injection Diverter (AIRD) Valve (Without Vent)
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1995 Ford RV Cutaway, 1995 Ford Pickup, 1995 Ford Econoline, 1995 Ford Cutaway, and 1995 Ford Club Wagon. However, it is still accessible from the selected car via links, so may be relevant.
- With engine cold, vacuum signal should be present at valve. Disconnect air supply hose at inlet. Accelerate engine to 1500 RPM and verify presence of airflow in hose. Reconnect air supply hose to valve inlet.
- Disconnect air supply hoses at outlets "A" and "B". See Fig 1 . Remove vacuum line at vacuum nipple. Accelerate engine to 1500 RPM. Airflow should be heard and felt at outlet "B" with little or no airflow at outlet "A".
- Connect a vacuum line from manifold vacuum fitting to air supply control valve vacuum nipple. Accelerate engine to 1500 RPM. Airflow should exist at outlet "A" with little or no airflow at outlet "B".
- If valve does not operate as specified in steps 1), 2) and 3), replace valve. If airflow operates as specified, valve is okay. Reinstall hoses and clamps.