How Long Does a PCV Valve Hose Last?

Your car’s engine requires both air and gasoline in order to operate. During the combustion process, it also creates gases. These gases contain traces of gasoline and can be re-burned by injecting them back into the intake manifold. This enhances engine operation and also improves fuel economy. The PCV (positive crankcase ventilation) valve is the component that’s responsible for taking those gases and putting them back into the engine.

The PCV valve requires a couple of different hoses (the exact configuration will vary depending on the make and model you drive). The primary use for the hoses is for injecting the gases mentioned into the intake manifold. The valve itself operates on a vacuum, so the hoses are technically vacuum lines.

As you can imagine, your car’s PCV valve and PCV valve hose are subjected to high temperatures whenever the engine is operating, as well as being exposed to caustic gases. In addition, the PCV valve and hose are in use as long as the engine is running. Combined, this means there’s a significant potential for wear and tear.

In terms of predicted lifespan, there’s really no set time limit for your PCV valve hose. Because it is made of rubber, the PCV valve hose will eventually degrade and need to be replaced, but that time can vary drastically depending on a number of different factors, including how often you drive, how long the engine runs during each drive, how well maintained your engine is and many others.

If the PCV valve hose fails, you’ll definitely experience problems, including a loss of power and reduced fuel economy, so it’s important to know the signs to watch for that might indicate your hose (or the PCV valve itself) is failing or has already failed. These symptoms include:

  • Check Engine Light on
  • A hissing sound from the engine bay (indicating a hole in a vacuum hose)
  • Engine running rough at all speeds
  • Engine has an uneven (rough or “loping”) idle
  • Lack of power or response when pressing the gas pedal
  • Decreased fuel economy

If you’ve noticed any of these symptoms, it’s important to have both the PCV valve and the PCV valve hose inspected. If either is failing or has already failed, they must be replaced.


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Recent PCV Valve Hose Replacement reviews

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(104)

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Rusty

23 years of experience
512 reviews
Rusty
23 years of experience
Ford Expedition V8-5.4L - PCV Valve Hose Replacement - Arlington, Texas
Knowledgeable, experienced mechanic. Easy to converse with. Explained and reflected potential concerns. Was able to reasonably resolve issue at hand.
Chevrolet Cruze - PCV Valve Hose - Arlington, Texas
Rusty is fantastic! He is very knowledgeable and shoots you straight. He is very thorough, and makes sure everything is done right. I called him just after he left to tell him about a error code that came up, and he came right back to see what the issue was, I didn’t even have to ask. If you want a mechanic that shows up on time and gets the job done right, Rusty is your guy!

Lucas

21 years of experience
885 reviews
Lucas
21 years of experience
Ford Escape L4-2.3L Hybrid - PCV Valve Hose - Pasadena, California
I tasked Lucas with a nightmare of a job. Changing the PCV on my 2005 Ford Escape Hybrid. He already knew that it was a 2.3L Duratec Engine similar to the ones that are in the Mazda 3. He also knew just how long the job would take. He did it all with ease, efficiency and a sense of humor. I was thoroughly impressed how he took the entire manifold off and put it back together without a hitch. Thank you for your services sir, it was greatly appreciated. If anyone is reading this, THIS IS YOUR GUY!
Ford Explorer - PCV Valve Hose - North Hollywood, California
He was very detailed, helpful and a professional. Definitely would call him again, if I had car problems.

Nicholas

11 years of experience
585 reviews
Nicholas
11 years of experience
Ford Explorer Sport Trac V6-4.0L - PCV Valve Hose - Cary, North Carolina
Nick as always was prompt, prepared and explained in detail what was wrong with my vehicle. He took his time to make sure I understood. Patient and kind. This is the 3rd time Nick has come to my home to service my car. He knows his stuff and is a great Mechanic! Highly Recommend.

Reginald

37 years of experience
93 reviews
Reginald
37 years of experience
Ford Expedition V8-4.6L - PCV Valve Hose - Los Angeles, California
Reginald arrived early and was very thorough. He was knowledgeable and professional. I appreciate him communicating with me about each important detail prior to making the repairs. I would recommend him to my family and friends.

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