The purge valve, or EVAP purge solenoid, is located in the engine bay, typically mounted on or near the intake manifold on the driver’s side. It’s a small black plastic valve with two vacuum hoses and an electrical connector.
What the purge valve does and why it matters
In the Explorer’s evaporative emissions (EVAP) system, the purge valve controls when fuel vapors from the charcoal canister are drawn into the engine to be burned. A faulty valve can trigger diagnostic trouble codes (DTCs) or cause rough running if vapors aren’t properly managed. Locating the valve is a key step in diagnosing EVAP-related issues.
Where to look in the engine bay
Use these cues to locate the purge valve. The valve is usually found on the intake manifold area, near the throttle body, and is easily identifiable by its two vacuum hoses and a single electrical connector.
- Common location: On the upper portion of the intake manifold, close to the throttle body, on the driver’s side of the engine bay. The valve is a small rectangular or cylindrical plastic piece with two vacuum lines and an electrical plug.
- Visual clues: It sits along one of the EVAP vacuum hoses routed from the charcoal canister toward the intake. Look for a mounting point with a single mounting bolt.
- Alternative routes: In some trims or configurations, the purge valve may be tucked closer to the firewall or near the canister routing under the hood. If you can’t find it on the manifold, trace the EVAP hoses from the canister toward the engine to locate the valve.
In practice, the intake-manifold area on the driver’s side of the engine is the first place to check. If it isn’t there, follow the EVAP hoses from the canister to identify the valve’s exact spot for your specific engine and trim.
First stop: intake manifold area
Begin your search at the intake manifold just behind the throttle body. The purge valve should be mounted to the plenum or nearby with two vacuum hoses connected and a single electrical connector visible.
Other possible locations
Some configurations may move the valve closer to the firewall or along the EVAP hose path beneath the engine bay. If you don’t see it in the obvious spot, follow the vacuum hoses from the EVAP canister and look for the valve inline with those hoses.
Summary
For a 2017 Ford Explorer, the purge valve is typically located in the engine bay on the driver’s side, mounted near the intake manifold. It appears as a small black plastic solenoid with two vacuum hoses and an electrical connector. If you can’t find it there, trace the EVAP lines from the charcoal canister toward the engine or consult the vehicle’s service manual for the exact location specific to your engine and trim.