2007 dodge nitro evap system monitor watch

#2007 dodge nitro evap system monitor watch code
#2007 dodge nitro evap system monitor watch series

The purge solenoid is responsible for controlling the flow of fuel vapors from the canister to the engine.

#2007 dodge nitro evap system monitor watch code

The P0440 code can also be attributed to purge solenoid issues within the EVAP system. Purge Solenoid Problems Purge valves come in many shapes and sizes The canister is designed to store fuel vapors and release them into the engine’s intake manifold to be burned during the combustion process. The EVAP canister itself may be the source of the problem if there is a leak or damage. These components are responsible for capturing, storing, and recycling fuel vapors from the fuel tank and fuel delivery system.ĭamaged or leaking hoses may lead to a small leak or even large leaks, resulting in a malfunction and triggering the P0440 code. Valves and HosesĪnother cause for the P0440 code could be leaking or damaged valves and hoses in the EVAP system. It may be more noticeable right after you fill up.Ī common cause of the P0440 code in a Dodge Ram is a leaking or loose gas cap.Ĭheck the gas cap and ensure it is properly sealing the fuel tank, as this can lead to a malfunction with the Evaporative Emission Control System (EVAP). If these vapors are leaking from the system, you’ll often smell them faintly while operating the vehicle.

The EVAP system deals directly with fuel vapors.

Often, this code is easily remedied by a new gas cap. The area around the fuel tank may smell of gas. The P0440 code will typically not be accompanied by any noticeable symptoms other than the smell of gas and the service engine soon light. If that’s the case for your Ram, you may want to start your diagnosis with one of the other codes.

#2007 dodge nitro evap system monitor watch series

It is common for another code from the P044X series to accompany the P0440 code, which can help provide further information on the issue. This code is a general indication of a malfunction in the EVAP system and does not pinpoint the specific problem. When the Ram’s onboard diagnostics system (OBD-II) detects a fault in the EVAP system via a vacuum test, it generates the P0440 code. The EVAP system should not affect the way your Ram’s engine runs whatsoever. The EVAP system is designed to capture, store, and recycle fuel vapors from the fuel tank and delivery system, preventing them from being released into the atmosphere.Įssential components of the system include fuel vapor hoses, a charcoal canister for fuel vapor storage, and computer-controlled purge and vent valves.

EVAP System A loose or bad gas cap is the first thing you should check if your Ram has P0440 P0440 is a generic code, which means it has the same definition for the Dodge Ram as it would any other vehicle made after the 1996 model year. Evaporative Emission Control System – Malfunction