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Cleaning/Replacing EGR Valve-A look Into How to Clean and Replace an EGR Valve P0400

Cleaning/Replacing EGR Valve

Cleaning/Replacing EGR Valve

Cleaning/Replacing EGR Valve

The EGR valve controls a small passageway between the intake and exhaust manifolds. When the valve opens, intake vacuum draws exhaust gasses through the valve.

When removing your engine.Make sure to take care not to damage the EGR valve. naturally,when you buy a used or re-manufactured engine.So you want to make sure you get one with an EGR valve with your original engine. Unknown problems could occur. So if you get an engine without the EGR valve already in place.

EGR stands for (Exhaust Gas Re-circulation Valve). Of course its main object is to help your car more efficiently. Completely burning fuel by recirculating a portion of your exhaust. Hence,running it through the combustion process again. When the valve opens, intake vacuum draws exhaust through the valve.

Cleaning/Replacing EGR Valve

If you ever have to remove your engine for any reason. Then make sure to take care not to damage the EGR valve. Also should you have to buy a used or re-manufactured engine. Subsequently, you want to make sure you get one with an EGR valve already in place. Especially, if your original engine had one.

The “ported vacuum switch” screws into the intake manifold. Thus, a ported vacuum switch is a vacuum switch installed usually on your intake manifold in a coolant port. Including the thermostat housing or engine so the heat-sensing element is in contact with the engine’s coolant. Consequently, as the engine heats up, the wax pushes the plunger.

Expanding up until it uncovers or blocks the vacuum port. Severe engine overheating can damage the switch. So,making replacement necessary.
Another component that may be a part of your vehicle’s EGR system is a “ported vacuum switch” (PVS), which may also be called a “thermal vacuum valve” or “temperature vacuum valve” (TVS). The switch controls the passage of vacuum that operates the EGR valve.

Cleaning/Replacing EGR Valve

Clogged or Low Flow EGR? Learn how to clean carbon buildup in the EGR valve which can cause check engine light codes P0400 though P0408. I also show you how to test your EGR valve to make sure it is working properly or if you need a new one.

EGR Codes:
P0400 Exhaust Gas Recirculation Flow Malfunction
P0401 Exhaust Gas Recirculation Flow Insufficient Detected
P0402 Exhaust Gas Recirculation Flow Excessive Detected
P0403 Exhaust Gas Recirculation Circuit Malfunction
P0404 Exhaust Gas Recirculation Circuit Range/Performance
P0405 Exhaust Gas Recirculation Sensor A Circuit Low
P0406 Exhaust Gas Recirculation Sensor A Circuit High
P0407 Exhaust Gas Recirculation Sensor B Circuit Low
P0408 Exhaust Gas Recirculation Sensor B Circuit High

 

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