How to Clean Purge Solenoid Valve? Solving Emission Issues!

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how to clean purge solenoid valve

The purge valve solenoid, a component of the vehicle’s EVAP structure, is made to send the gases of gasoline back into the combustion chamber from the fuel tank. Although it is possible to connect the fuel tank with the inlet manifold using a hose, the process is a little more intricate and calls for two purge valves. How to clean purge solenoid valve?

You will learn about the Purge Solenoid Valve plus the significance of cleaning it in this post. Find out what to look for in a dirty purging solenoid valve and what errors to stay away from when washing it.

What is a Purge Solenoid Valve?

The evaporative emission control (EVAP) mechanism of your car includes the purge valve, which is sometimes referred to as the cylinder purge valve.

It stops gasoline vapors from leaking into the air by trapping them when they are produced in the gasoline tank.

The valve is controlled by a solenoid that can occasionally fail and leave it trapped, closed, or open.

The EVAP (vehicle evaporative emission control) system includes a purge valve. The EVAP system stops gasoline vapors from leaking from the fuel container and into the environment.

The petroleum vapors are consumed within the engine while the motor is running under specific circumstances that cause the canister to be purged of its contents. The purge valve carefully regulates how much smoke from the fuel is expelled from the carbon canister.

What is the Importance of Cleaning Purge Solenoid Valve?

Whenever there is an obstruction within, the purge solenoid mechanism malfunctions, and the valve becomes clogged with dirt particles. The efficiency of the automobile engine might be negatively impacted.

The process of cleaning is closely related to clearing the obstruction. To remove the filth from the system as a whole, simply shut the control valve and apply high-pressure air or water.

In principle, if you remove the valve that purges properly, you won’t experience any change in how the motor works because the purge gate isn’t necessary for the motor and doesn’t enhance how it operates.

Your vehicle will cause greater environmental pollution, though, and it will almost certainly fail its emissions testing.

The amount of time you drive using a damaged valve, the greater the chance you have of breaking the EVAP system along with other components of the car. Additionally, there is a chance of squandering fuel and emitting more pollutants than required.

Symptoms of a Dirty Purge Solenoid Valve

Having Trouble Starting your Engine

The purge valve might be the issue if your automobile won’t start. In order to prevent fuel from flowing back through the filler tube whenever the engine is turned off, the purge valve has the charge of keeping the fuel reservoir at an upward pressure.

The Car Stalls Out or has Difficulty Running

It may indicate a problem with your purge valve if the vehicle runs sluggishly or stalls altogether.

The Car’s Acceleration is Not Smooth

Whenever you press the throttle pedal, the automobile hesitates. This is frequently a clue that the valve that removes waste is malfunctioning.

The Check Engine Indicator Illuminates

The engine warning light may illuminate as well as the engine may misfire if the exhaust valve on your automobile is malfunctioning.

Gasoline is Coming from the Engine

Gasoline odors might come from the engine whenever the purge valve isn’t functioning correctly and allows extra fuel to seep out.

How to Remove the Purge Solenoid Valve Safely

How to Remove the Purge Solenoid Valve Safely?

The rings holding each of the vacuum tubes to the purge solenoids should be unclamped using a set of tiny pliers. To remove each tube from the valve, gently twist as well as pull it out.

Squeeze the power connector’s tip to unhook it away from the valve, which is also connected to it via a black electrical connection. Then, just remove the valve to remove it from your automobile.

The purge solenoid pumps in certain autos are fastened with bolts. Simply undo them with a socket key and remove the valve.

The price of a replacement ranges from $100 to $180 and includes the cost of work. But if you’re aware of the right route to take, you can easily change the purge valve on your own.

How to Clean Purge Solenoid Valve?

Employ the Sprayer

A carb cleaning sprayer or MAF cleaning should be obtained. The fluid formula is contained in a tin container and is included with both.

The tremendous pressure of liquid or air being thrown by the sprayer causes dirt as well as dust particles stuck inside the valve’s opening to escape swiftly.

Utilize the Hand Motion

The valve should be removed and held in the palm of your hand. Use your fingers to firmly grasp the purge valve’s both ends.

The purge valve should then be shaken vigorously for a couple of minutes. As a result, one of the value’s ends may be removed, freeing up the dirt that had been stowed within.

Take the Liquid Out

Permit the liquid to exit the container by opening the valve on both ends. Repeat the first as well as second procedures as necessary to clear the purge valve of any liquid and debris.

Clean Contacts by Spraying

Due to stress, dirt that has been caught within the purge valve is eliminated when the fluid is sprayed under high pressure. When the dirt has been eliminated, give the valve some time to dry before re-connecting to the motor.

You must do a deep cleaning when any of the other procedures are successful. Purge valves must be cautiously opened so as not to break them when being cleaned.

Mistakes to Avoid When Cleaning the Purge Solenoid Valve

Use of brake parts housekeepers, carb/choke housekeepers, and general parts cleaners should be avoided.

Alternatively, employ heavy air flow sensor cleaners. The purge solenoid is composed of plastic. Therefore, doing this is considerably safer for it.

When you’re certain that it’s completely dry, reattach the solenoid for your purge switch, begin the vehicle, and check to determine whether the engine warning light remains on.

The vehicle’s speed should return to its previous state at this time, and the engine warning light will undoubtedly turn off.

Equipment like solenoid valves is sensitive and easily broken if not treated properly. The primary cause for mechanical valve failure is contaminants such as dirt entering into the valve’s interiors or body.

This might occur if the valve itself is not frequently serviced and sanitized or if it isn’t placed in an environment that is clean.

If particles or dirt enter the valve, it may either obstruct fluid flow via the valve or overheat and blow out the solenoid’s coil.

Watch this one,

Video Credits – AliMECH 

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