FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

HG2 - PCV System Check



- Start engine and bring to normal operating temperature.

- Disconnect hose from remote air cleaner or air outlet tube (tube connecting mass air meter and throttle body).

- Place a stiff piece of paper over the hose end. Wait one minute.

- Does vacuum hold the paper in place?

YES -- System is OK. RECONNECT hose. GO to Symptom Flowcharts for other possible causes of vehicle symptoms. Testing and Inspection

NO -- System is plugged or Evaporative Emission Valve is leaking (if equipped). GO to HG3. HG3 - Evaporative Emission System Check