Back to all

Moore Drivers: Is It Time to Replace Your PCV Valve?

October 25, 2016


Improved The crankcase is the lower part of the engine where the crankshaft is housed and where the engine oil lives. The crankshaft is connected to the pistons that power the engine.

When you are diving around Moore fuel is burned in your vehicle engine, it pushes the pistons down and the crankshaft rotates and sends power to the transmission. Some of the explosive gases from combustion squeeze past the pistons and down into the crankcase.

Now this gas is about 70% unburned fuel. If it were allowed to remain in the crankcase, it would contaminate the oil and quickly turn it to sludge. Sludge is like Vaseline and clogs passages in the engine leading to damage.

Also, the pressure build up would blow out seals and gaskets. So in the old days, there was just a hose that vented the crankcase out into the air. Obviously, not good for our air quality in Moore, OK.

Enter the PCV valve. It's a small, one-way valve that lets out the gases from the crankcase, and routes them back into the air intake system where they are re-burned in the engine. Fresh air comes into the crankcase through a breather tube. This makes for good circulation in the crankcase. And that gets the air out. As you can imagine, however, the valve gets gummed up over time.

Your vehicle manufacturer usually recommends they be changed somewhere between twenty and fifty thousand miles. Unfortunately, PCV valve replacement is left out of some vehicle owner's manuals, but your friendly service advisor at South Side Garage, we will make sure your PVC is replaced if needed.

South Side Garage
2220 Pole Rd
Moore, OK 73160
405-308-1514
http://www.thesouthsidegarage.com

More articles from Southside Garage

When Metal Meets Metal (Wheel Bearings)

April 20, 2025

What part of your vehicle has little metal balls inside that are lubricated and allow you to cruise on down the road? They are wheel bearings, and automotive designers might argue they are human beings' second greatest invention of all time (the first is, of course, the wheel!). You have a wheel... More

Such a Little Part (Climate Control Resistor)

April 13, 2025

You expect your heater/air conditioner to work like it should. You have a control for temperature and one for fan speed. You even have a control for what vents the air comes out of. Don't be surprised one day if your blower fan develops a mind of its own and starts going crazy. Most of the ti... More

When it Comes to Air Filters, Change is Good (Clogged Air Filter)

April 6, 2025

Engine air filters may not seem like a big deal, but when theyre clogged up with dirt, dust, and insects, your engine could wind up choking for air and not delivering you the power and performance it was designed to give. There are actually a couple of air filters in your vehicle. One filters th... More