What causes an EVAP vent solenoid to fail?
What causes an EVAP vent solenoid to fail? P0449 Gmc Possible Causes. Vacuum leaks, damaged hoses or improper routing. EVAP system. Check fuel cap, canister, valves or components. Faulty purge or vent solenoids. Check connector and wiring. Fuel saturated vapor canister. Failed EVAP vent solenoid. What causes an EVAP valve to fail on a GMC? P0449 GMC Possible Causes. Vacuum leaks, damaged hoses or improper routing. EVAP system. Check fuel cap, canister, valves or components. Faulty purge or vent solenoids. Check connector and wiring. Fuel saturated vapor canister. Failed EVAP vent solenoid. When to set the OBDII code for the...