August 20, 2023
It's easy to get letters like PVC and PCV mixed up. PVC is a plastic that's used in a lot of things, especially plumbing pipes. And PCV is a valve that helps your engine burn off excess fumes rather than having them pollute our atmosphere.
PCV stands for positive crankcase ventilation. When your engine ignites gasoline in the cylinders, some of the gases produced make their way into the crankcase, where oil is held to lubricate the engine. In earlier days, those gases would be vented out through a hose and go directly into the air. It was a waste of gasoline (since about three-fourths of the gases were unburned fuel) and a nasty source of pollution.
So engineers devised a one-way valve that directed those gases back into the engine's air intake system to be burned again. After a while, the PCV valve can get clogged up with gummy oil. Not only does that reduce the recirculation of the gases, but it can also cause pressure in the crankcase to increase and possibly lead to an oil leak.
Signs your PCV valve has failed are oil leaks around the engine compartment or under your vehicle and poor engine performance. Your fuel economy will get worse. If you notice those signs, we can check your PCV valve.
At the same time a technician inspects the PCV valve, they'll also check the vacuum hose that runs back to the air intake. Plus, they'll make sure the vehicle doesn't have any other engine problems that might be contributing to your issues.
Many technicians recommend replacing your PCV valve with each major tune-up, so you get ahead of any problems before they develop. Now that you're an expert on PCV, it may be time to check out those PVC pipes in your bathroom!
Tuffy Tire & Auto Perrysburg
27140 Oakmead Dr.
Perrysburg, Ohio 43551
419-873-8330
April 20, 2025
If you own a newer vehicle, your vehicles manufacturer may require that it use synthetic oil instead of conventional oil. Synthetic oils are more stable, dont break down as easily, and provide better engine protection than conventional oil. All those things can prolong the life of your engine an... More
April 13, 2025
Tires are so reliable these days that few drivers pay much attention to them. But tires wear out. They have a tough job since they are the only point of contact between your vehicle and the road. They have to get your vehicle going from a stop, keep it going, make sure it is headed in the dire... More
April 6, 2025
Maybe your vehicle feels like Breaking Bad. In other words, when you brake, things are bad. You may find it takes you a longer distance to stop, you feel a vibration, or its pulsating when you depress the brake pedal, or perhaps your vehicle pulls to one side. Those can be symptoms of failing b... More