Component Inspection

Check PCSV for leakage
1. Ignition "OFF"
2. Disconnect the hose leading from the PCSV to the intake manifold at PCSV.
3. Apply a vacuum at the nipple and verify that the PCSV holds vacuum.
4. IG "ON" and perform ACTUATION TEST for PCSV with scantool (should hear a faint click from PCSV)
5. Vacuum should be released.
6. Repeat this procedure 4 or 5 times to ensure PCSV reliability.
7. Is the PCSV working properly?
  YES
  - It was intermittent failure., go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  NO
  - Substitute with a known - good PCSV and check for proper operation. If the problem is corrected, go to "VERIFICATION OF VEHICLE REPAIR " procedure.