The purge valve, or EVAP purge solenoid, is a small two-wire valve in the evaporative emissions (EVAP) system. On a 2015 Ram 1500, its exact location varies with the engine option, but you’ll typically find it along the purge line between the charcoal canister and the engine’s intake manifold, often mounted on or near the intake plenum.
Engine-by-engine location
Use these guidelines to pinpoint the purge valve for your 2015 Ram 1500. The valve is a compact solenoid with a two-pin electrical connector and a short vacuum hose.
3.6L Pentastar V6
- Typically mounted on the upper portion of the intake manifold/plenum, near the throttle body. It’s a small black valve with a two-pin electrical connector and a vacuum hose attached to the EVAP purge line.
Conclusion: For the 3.6L Pentastar, look around the intake plenum toward the passenger side behind the throttle body to locate the purge solenoid.
5.7L Hemi V8
- Usually located on the intake manifold side of the engine, near the throttle body, as part of the EVAP purge path. Expect a compact solenoid with a two-pin connector and a vacuum hose.
Conclusion: On the 5.7L Hemi, search along the intake manifold where the purge line enters the plenum; the valve will be the small two-wire solenoid.
3.0L EcoDiesel
- Often found along the EVAP purge line toward the rear of the engine bay, near the canister or intake area; still a compact solenoid with a two-pin connector.
Conclusion: For the 3.0L EcoDiesel, check toward the back of the engine bay on the purge line between the EVAP canister and the intake for the valve.
How to locate the purge valve on your specific Ram 1500
The following steps help you locate the purge valve in most 2015 Ram 1500 configurations. Trace the evaporative emissions line from the charcoal canister to the engine, and identify the small two-wire solenoid sitting in-line on that hose or mounted to the intake plenum.
- Identify your engine option (3.6L, 5.7L, or 3.0L) by checking the VIN sticker or under-hood engine badge.
- Find the EVAP canister, typically located near the rear of the engine bay or along the frame near the fuel system; follow the purge line from the canister toward the engine.
- Look for a small black valve with a two-pin electrical connector along this line or mounted to the intake plenum; that is the EVAP purge valve.
- If accessible, gently wiggle or test the electrical connector to confirm continuity and check for signs of damage or cracks in the hose connections.
Conclusion: Locating the purge valve mainly involves tracing the EVAP purge line from the charcoal canister to the engine; the valve itself is the small two-wire solenoid found in that path. Exact mounting can vary by engine type, so refer to your service manual or a parts diagram for your specific VIN.
Summary
In a 2015 Ram 1500, the purge valve is part of the EVAP system and is usually located along the line between the charcoal canister and the intake manifold. The exact position depends on the engine: the 3.6L Pentastar and the 5.7L Hemi typically place the valve on or near the intake plenum, while the 3.0L EcoDiesel places it toward the rear of the engine bay along the purge line. For precise location, consult the factory service manual or a trusted parts diagram for your specific engine and VIN.


