LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 186 (Engine Controls - 3.9L - Introduction (2 Of 2)) >> Repair Instructions >> Evaporative Emission System Cleaning >> Cleaning Procedure

Cleaning Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE .
  2. Remove the EVAP canister. Refer to Evaporative Emission Canister Replacement (Short Wheel Base)  or Evaporative Emission Canister Replacement - Long Wheel Base .
  3. Turn OFF the main valve on the J 41413  .
  4. Disconnect the hose from the diagnostic station pressure regulator.
  5. Using a section of vacuum hose, connect one end onto the EVAP pressure/purge diagnostic station pressure regulator.
  6. Connect the other end of the vacuum hose to the canister side of the purge pipe.
  7. Turn ON the main nitrogen cylinder valve and continue to discharge nitrogen for 15 seconds.
  8. If the nitrogen does not clear the blockage, replace the purge pipe.
  9. Return the EVAP pressure/purge diagnostic station to the stations original condition.
  10. Install a NEW EVAP canister. Refer to Evaporative Emission Canister Replacement (Short Wheel Base)  or Evaporative Emission Canister Replacement - Long Wheel Base .
  11. Lower the vehicle.
  12. Install EVAP canister purge valve. Refer to Evaporative Emission Canister Purge Solenoid Valve Replacement .
  13. Return to the diagnostic table that sent you here.
scientia non olet · About LEMON Manuals