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 Pelham, 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 Pelham, Alabama.
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 20,000 to 50,000 miles/30,000 to 80,000 kilometers. Unfortunately, PCV valve replacement is left out of some vehicle owner's manuals, but your friendly service advisor at Tuffy Pelham, we will make sure your PVC is replaced if needed.
3422 Pelham Parkway
Pelham, Alabama 35124
September 26, 2021
A recent report stated that over 80 percent of the vehicles on our Pelham, Alabama, roads have one or more service or repair that's needed but hasn't been taken care of. Now that's a lot of undone service. That translates into something over 160 million vehicles in North America alone. Some of th... More
September 19, 2021
We live such busy lives nowadays: work, social events, running the kids all over Pelham. Some days it's all we can do to keep track of everywhere we need to be. That's why you've gotta be organized. Smartphones, calendar apps - we have to keep track of it all.So let's talk about schedules. Speci... More
September 12, 2021
Underinflated tires waste gas for lots of folks in the Pelham area. Think how hard it is to walk in sand you just have to work harder because of the resistance. When your tires don't have enough air in them, their rolling resistance is dramatically increased and it simply takes more gas to get f... More