Hissing Sound When Removing Fuel Cap: Continental
- Testing EVAP Canister & Canister Vent Solenoid Flow -
Connect Evaporative Emissions System Leak Tester (134-00056) to test port. Pressurize system to 14 in. H2
O (3.48 kPa). If pressure drops immediately, go to step 8. If pressure does not drop immediately, go to next step.
- Testing Canister Vent Solenoid Remote Vent Hose Assembly For Blockage
Disconnect canister vent solenoid hose from solenoid. Pressurize system to 14 in. H2
O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid remote vent hose. Perform evaporative emissions system leak test. See EVAPORATIVE EMISSIONS SYSTEM LEAK TEST . If pressure does not drop immediately, go to next step.
- Testing Canister Vent Solenoid Hose Assembly For Blockage
Disconnect canister vent solenoid hose assembly. Pressurize system to 14 in. H2
O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid hose assembly. Perform evaporative emissions system leak test. See EVAPORATIVE EMISSIONS SYSTEM LEAK TEST . If pressure does not drop immediately, go to next step.
- Testing Canister Vent Solenoid Elbow For Blockage
Remove canister vent solenoid elbow. Pressurize system to 14 in. H2
O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid elbow. Perform evaporative emissions system leak test. See EVAPORATIVE EMISSIONS SYSTEM LEAK TEST . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
- Testing EVAP Canister
Disconnect EVAP canister tube at canister that runs from EVAP canister to fuel tank. Pressurize system to 14 in. H2
O (3.48 kPa). If pressure drops immediately, replace EVAP canister. Perform evaporative emissions system leak test. See EVAPORATIVE EMISSIONS SYSTEM LEAK TEST. If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
- Testing EVAP Canister Tube
Disconnect EVAP canister tube at fuel vapor valve tube assembly that runs from EVAP canister to fuel tank. Pressurize system to 14 in. H2
O (3.48 kPa). If pressure drops immediately, replace EVAP canister tube. Perform evaporative emissions system leak test. See EVAPORATIVE EMISSIONS SYSTEM LEAK TEST . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
- Testing EVAP Canister Purge Outlet Tube
Disconnect EVAP canister purge outlet tube at fuel vapor valve tube assembly that runs from EVAP purge valve to fuel tank. Pressurize system to 14 in. H2
O (3.48 kPa). If pressure drops immediately, go to step 9. If pressure does not drop immediately, go to next step.
- Testing Evaporative Emissions Test Port
Disconnect evaporative emissions test port from EVAP canister purge outlet tube. Pressurize system to 14 in. H2
O (3.48 kPa). If pressure drops immediately, replace EVAP canister purge outlet tube. Perform evaporative emissions system leak test. See EVAPORATIVE EMISSIONS SYSTEM LEAK TEST . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace evaporative emissions test port. Perform evaporative emissions system leak test. See EVAPORATIVE EMISSIONS SYSTEM LEAK TEST . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
- Testing Fuel Vapor Valve Tube Assembly
Disconnect EVAP canister purge outlet tube at fuel vapor valve tube assembly. Connect EVAP tester to fuel filler tube. Pressurize system to 14 in. H2
O (3.48 kPa). If pressure drops immediately, reconnect all components. Perform evaporative emissions system leak test. See EVAPORATIVE EMISSIONS SYSTEM LEAK TEST . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace fuel vapor valve tube assembly. Perform evaporative emissions system leak test. See EVAPORATIVE EMISSIONS SYSTEM LEAK TEST . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.