Back to all

The Little Valve that Could (PCV Valve Replacement)

July 9, 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 Bonita Springs
27790 S. Tamiami Trail
Bonita Springs, Florida 34134
239-498-9940
https://www.tuffybonitasprings.com

Need Service?

Request a Quote

More articles from Tuffy Bonita Springs

Bonita Springs Car Owners Ask: Why Do I Need to Change My Serpentine Belt?

June 16, 2024

Any Bonita Springs driver who understands preventive maintenance knows that if it ain't broke, don't fix it is bad auto advice. Replacing a part before it breaks is much less costly for Bonita Springs residents than repairing the engine damage that comes after a part breaks or fails. A good examp... More

Free Money (Almost) (Fuel Saving Tips)

June 9, 2024

You spend a lot of money on a vehicle, probably the most money you'll spend on anything except a house. But the spending doesn't stop after you've bought it. It goes into things like insurance, repairs and fuel. One good piece of news is that you can cut down the amount you spend on fuel if yo... More

When Are Your Tires Worn Out?

June 2, 2024

Hey Bonita Springs area drivers, are your tires worn out? What is the standard for our Florida streets? How can you tell on your vehicle?While there may be legal requirements for the Bonita Springs area, there are safety concerns that go beyond meeting minimum replacement mandates.Two-thirty-se... More