Car is hard to start an runs rough. would be greatful if you could help me thank you..
This indicates that a part of the EVAP
control system is no longer fuctioning correctly. The EVAP system consists
of many parts, including (but not limited to) the gas cap, fuel lines, carbon
canister, purge valve, and other hoses. The (EVAP) emission
control system prevents the escape of fuel vapors from a vehicle's fuel system.
Fuel vapors are routed
by hoses
to a charcoal canister for storage. Later, when the engine is running a purge
control valve opens allowing intake vacuum to siphon the fuel vapors into
the
engine.
Causes:
A code P0440 could mean one or more of the following has happened:
With a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here
are some things to try:
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