Chevrolet Caprice Canister Purge Valves keep the fuel vapors from escaping by routing them into the engine to burn instead of releasing them into the air, which helps improve air quality and save fuel. During the early 1970s, the system for automobile fuel tanks transitioned from an open fuel cap to a sealed system. Mechanical valves that were linked with the engine allowed vapors stored in a charcoal canister to be withdrawn via vacuum for strict emissions control during cruising. Later model Caprice applied solenoid-driven Canister Purge Valves that were commanded by the Engine Control Module. As electronics advanced, these Canister Purge Valves can close a separate vent and measure tank pressure to confirm the system holds vacuum. If a leak is detected, it triggers a light on the dashboard. Though they both share a similar goal, they operate differently. The mechanical style will open whenever the manifold vacuum is high, but the electronic style will only open when the various sensors indicate that conditions are right. The electronic style also provides better fuel trim and diagnostic ability. Keeping the fuel cap tight regularly enables these Canister Purge Valves to maintain pressure and avoid false leak codes on any Chevrolet Caprice. Chevrolet performance and emissions are optimally matched through the updated Canister Purge Valves, while the older Chevrolet Caprice relies on its inherently simpler design for effectiveness.
Each OEM Chevrolet Caprice 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.