|
|
Emission Control System Evaporative Emission (EVAP) Controls (cont'd) 7. Connect a second vacuum pump to the fuel tank vapor signal tube. FUEL TANK VAPOR VACUUM in.Hg 8. Apply vacuum (1 pump) to the fuel tank vapor sig- nal tube, then check the vacuum on the pump in step 6. • If the vacuum holds, replace the Fuel Tank Vapor Control valve. • If the vacuum is released, the Fuel Tank Vapor Control valve is OK. 9. Disconnect the fuel tank vapor vent tube from the EVAP canister, then plug the port on the canister. Control valve. • If the vacuum does not hold, inspect the EVAP canister vent shut valve O-ring. If the 0-ring is Main Menu Table of Contents |