How do I fix code P0442 small leak?

How do I fix code P0442 small leak?

Repairing the P0442 code

1. Inspect the canister purge valve next to the throttle body while the engine is running.
2. Check the vacuum port for its functionality with your finger—the purge valve is stuck if you experience sucking.
3. Replace the canister purge valve by removing the used purge valve and reinstalling a new one.

How do I fix my Chevy P0442?

Another GM service bulletin 02-06-04-037J for Chevy Silverado / GMC Sierra recommends replacing the vent valve solenoid assembly and adding or relocating a filter box using a service kit, if the code P0442 and other EVAP-related codes are present. The vent valve draws fresh air into the EVAP system.

Is P0442 serious?

Diagnostic trouble code (DTC) P0442 stands for “Evaporative Emission Control System Leak Detected (Small Leak)”. Your car’s computer will set the code when it determines there’s a minor leak somewhere in the evaporative emission control (EVAP) system.

What would cause a P0442 code?

What the P0442 code means. P0442 is present in vehicles that have a small leak in the EVAP system. The ECU carefully monitors the EVAP system for any leaks or irregularities, when a small leak is detected the ECU set a Check Engine Light to be displayed on the dashboard.

Where is the purge valve located?

The Canister purge control valve is most often located in the engine bay on a hose going from the intake to the canister. It can also be located near the fuel tank.

What causes code P0442?

What could cause a small EVAP leak?

Here are Some Possible Causes for an EVAP Code or an EVAP Leak: Missing or loose fuel cap. Incorrect fuel cap used. Evaporative (evap) emission canister or fuel tank leaks.

Where is the purge valve solenoid located?

Vapor Canister Purge Valve Location The Canister purge control valve is most often located in the engine bay on a hose going from the intake to the canister. It can also be located near the fuel tank.

What causes small EVAP leak?

How much does it cost to fix P0442?

The fuel evaporative system (EVAP) controls emission by housing vapors from evaporated fuel and sending them back to the fuel tank to be reused. The cost for EVAP system repair ranges between $200 and $560.