Vision V6-3.5L VIN F (1997)
Throttle Body: Testing and Inspection
Fig. 64 PCV Valve
1. Warm engine in Park or Neutral until the cooling fan has cycled on and off at least once.
2. Ensure that all accessories are off.
3. Shut off engine.
4. Disconnect the PCV valve hose from the PCV valve (Fig. 64). Cap the PCV valve.
Fig. 65 Purge Hose
5. Disconnect purge hose from the nipple on each throttle body (Fig. 65).
Fig. 66 Orifice 6457 Attached to Purge Nipple
6. Use a piece of hose to attach an Air Metering orifice 6457 (0.125 in. orifice) to the purge nipple on each throttle body (Fig. 66).
7. Connect the DRB scan tool to the data link connector inside the passenger compartment.
8. Restart the engine and allow engine to idle for at least one minute.
9. Using the DRB access Minimum Airflow Idle Speed.
