GMC Acadia Canister Purge Valves control the fuel vapors stored in the fuel tank that have not been sent to the engine so they can now be burned. This prevents the vapors from venting to the atmosphere and also lightens the load off the engine. These are located between the charcoal canister and the intake manifold and act as the gate of the EVAP circuit. When commanded by the engine computer to open, vacuum draws air through the carbon bed to sweep hydrocarbons into combustion chambers. When the engine is switched off, the valves remain in a closed position. It restricts vapor from escaping the canister and stops smog-forming hydrocarbons from entering the atmosphere. With the modernization of OBD II systems, a vent solenoid and a tank pressure sensor were added to the mix. This lets the computer seal the system, cycle the Canister Purge Valves, and check for leaks. If pressure does not drop as expected, a warning light will be activated. Despite their basic function remaining constant, early Canister Purge Valves operated purely on manifold vacuum. This more recent electrically controlled style responds to precise electronic signals for quicker response and tighter emissions control. On recent GMC Acadia versions, the electronic Canister Purge Valves work with the vent solenoid to confirm system integrity. Older GMC Acadia generations did not provide such built-in diagnostics, utilizing only simple vacuum-actuated Canister Purge Valves.
Each OEM GMC Acadia Canister Purge Valves we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.