Guide to Replacing a Car's PCV System - By: Tauqeer Hassan

PCV is a short term for Positive Crankcase Ventilation, these are one-way valves that are present in the engine crankcase of a car. It is housed in a system containing an intake breather hose and a valve as parts. The function of the PCV valve is to maintain the emission controls of the engine.

A PCV valve can block, the primary reason for blocked PCV valves is when the engine does not have oil changes with intervals which causes sludge. Sludge is known as the oil that is at a place for a very long time and thus changes to a solid material. It also happens to engines that are mostly used for short trips. Whenever this happens, the emission controls of the car will not operate normally. Power loss, gas mileages loss, slow car acceleration, poor idling and various other troubles are symptoms of a spoiled PCV valve.

Replacing a PCV valve is not easy but it’s also not complicated. This task is trouble-free to do when the weather is sunny and the engine is hot. Following are the steps for replacing a PCV Valve. Follow the directions.

Directions
Step 1:
Before the task is started, the shape of a PCV and its location must be known. The valve is located in the crankcase as mentioned earlier. The PCV looks like a small plug which is made of plastic and is placed on the upper half of the engine.

Step 2:
Once you have located the PCV, any obstructions in the way should be removed. This will help to prevent the other parts from getting damaged. In addition, working on the valve will be easier without anything blocking the way.

Step 3:
In the next step, the hoses that are connected to the valve have to be loosened. For doing this, the angled nose pliers should be used. Start by loosening the upper hose. The hose must not be gripped in a very tight manner because the metal stump can get damaged.

Step 4:
Once the upper hose is disconnected, use the nose pliers and grip the PCV valve firmly and pull it out.

Step 5:
For completely detaching the valve, the remaining upper hose has to be detached. The hole left by detaching it is the lower hose. This area has to be cleaned for ensuring that the replacement valve will be free of blockages. Ensure that there are no penetrates of dirt present in the hose.

Step 6:
Finally, the new PCV valve is ready to be installed now. It is installed in the gapping hole. First, the part for the upper hose has to be placed. This will be fairly easy as compared to when the part was being removed.

Step 7:
Remember to place the obstructions back as stated before. They must not be over-screwed, this will make them work efficiently.

This simple DIY method can save you some money.

About the Author

You might want to learn how to replace a car’s PCV system and also how to replace a car’s oxygen sensor.

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