Ford E5TZ-9D653-A Reservoir Assembly

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All gasoline powered vehicles are equipped with fuel evaporative emission control, designed to limit fuel vapors released into the atmosphere. Changes in atmospheric temperature cause fuel tanks to breathe, with the air within the tank expanding and condensing with outside temperature changes. The Evaporative Emission Control System provides a sealed fuel system with the capability to store and condense fuel vapors. The system has three parts: a fill control vent system; a vapor vent and storage system; and a pressure and vacuum relief system. The fill control vent system is a modification to the fuel tank, using an air space within the tank which is 10-12% of the tank's volume. The in-tank vent system consists of the air space and a vapor separator assembly. The sealed filler cap has a pressure vacuum relief valve. Because the filler cap is sealed, fuel vapors have but one place through which they may escape-the vapor separator assembly at the top of the fuel tank. The vapors pass through the foam material and continue through a single vapor line which leads to a canister in the engine compartment. The canister is filled with activated charcoal. As the fuel vapors enter the charcoal canister, they are absorbed by the charcoal. When the engine is started, vacuum causes fresh air to be drawn into the canister from its open bottom. The fresh air passes through the charcoal picking up the hydrocarbons which are trapped there and feeding them into the intake for burning with the fuel mixture. The only testing done to the vapor canister is a visual inspection. The CANP solenoid is removed and tested using an external voltage source. The fuel vapor canister is disconnected from the vapor hoses and removed from the vehicle. The fuel vapor valve is removed from the fuel tank and reinstalled. The CANP solenoid is disconnected from the vapor hoses and removed from the vehicle. The fuel filler cap is unscrewed and removed from the vehicle.

First of all, the Evaporative Emission Control System (EECS) captures fuel vapor from the fuel tank, throttle body, and intake manifold. It consists of a charcoal-filled canister connected to the fuel tank, a ported vacuum, and an intake manifold vacuum. When the engine is off, the system holds fuel vapors in the canister. During engine operation, a purge control solenoid is opened to release the fuel vapors into the combustion process. A faulty purge control solenoid, damaged canister or hose problems can result to issues like poor idle, stalling or driveability problem. If necessary, the technician checks if there are any cracks in the canister and replaces it accordingly.

The evaporative emissions control system sucks in fuel vapors from the gas tank, stores them, and sends them to the intake manifold. Also, a strong fuel odor in the engine compartment often means a fault in this system. Inspect the charcoal canister, located in the engine compartment or under the vehicle, for damage.

This system prevents hydrocarbons from polluting the atmosphere by storing fuel vapor from the tank. It includes a charcoal canister, purge control solenoid, connecting lines, fuel cap, and fuel injection system. Vapor from the tank is stored in a charcoal canister located near the front wheel well until the engine starts. The canister connects to a purge solenoid, which opens at engine start to draw vapor into the air cleaner. The canister and solenoid should be checked for damage or malfunction and replaced if necessary. To replace the canister, remove the mounting bolt, lower the canister, detach the hose, and remove the canister. For other components, use the VECI label schematic to locate and replace them. Installation is the reverse of removal.

The evaporative emissions control system sucks in fuel vapors from the gas tank, stores them, and sends them to the intake manifold. Also, a strong fuel odor in the engine compartment often means a fault in this system. Inspect the charcoal canister, located in the engine compartment or under the vehicle, for damage.

This system prevents hydrocarbons from polluting the atmosphere by storing fuel vapor from the tank. It includes a charcoal canister, purge control solenoid, connecting lines, fuel cap, and fuel injection system. Vapor from the tank is stored in a charcoal canister located near the front wheel well until the engine starts. The canister connects to a purge solenoid, which opens at engine start to draw vapor into the air cleaner. The canister and solenoid should be checked for damage or malfunction and replaced if necessary. To replace the canister, remove the mounting bolt, lower the canister, detach the hose, and remove the canister. For other components, use the VECI label schematic to locate and replace them. Installation is the reverse of removal.

To replace the charcoal canister, you should remove a single mounting bolt, lower the canister, detach the hose, and reinstall it in reverse.

When replacing check valves connected to a steel air tube, it's important to use a back-up wrench.

The emission control system is designed to prevent the release of raw fuel vapors into the atmosphere during engine-on and engine-off conditions.

Vapor pressure is controlled by connecting a charcoal canister to vapor sources and integrating a vapor relief valve into the fuel tank.

The canister replacement procedure involves labeling and detaching vacuum lines, removing the canister, and securing it back in place. Proper installation is emphasized for optimal system functionality.

During engine inactivity, the fuel vapors are stored in the canister.

If a strong fuel odor is detected, it is advisable to inspect the charcoal canister, which is located in the engine compartment or under the vehicle.