CTS V8-5.7L VIN P (2004)
Evaporative Emissions Hose: Description and Operation
EVAP LINES AND HOSES
The evaporative emission (EVAP) line extends from the fuel tank vent valve to the EVAP canister and into the engine compartment. The EVAP line is
made of nylon and connects to the EVAP canister with a fuel resistant rubber hose and quick connect fittings.