Symptoms of a Bad or Failing PCV Valve Hose

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Cost of Replacing a Bad or Failing PCV Valve Hose

Common signs include poor fuel economy, the Check Engine Light coming on, engine misfires while idling, and noise from the engine. Our certified technicians can come to you and diagnose the problem. You will receive a $30 credit towards any follow-up repairs that result from the diagnostic. Following are example prices for PCV Valve Hose Replacement. Click on the button below to get an upfront quote for your car.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2007 Ford Escape $105 $35.21 $70.00 26% $142.71
2008 Mazda CX-9 $110 $40.32 $70.00 25% $147.82
2006 Pontiac Wave $100 $30.14 $70.00 27% $137.64
2008 Mercedes-Benz B200 $127 $56.79 $70.00 22% $164.29
2004 Lexus LS430 $104 $34.49 $70.00 26% $141.99
2014 Porsche Cayman $171 $100.84 $70.00 17% $208.34
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How to Diagnose a Bad or Failing PCV Valve Hose?

positive crankcase ventilation valve

The Positive Crankcase Ventilation (PCV) valve hose transfers excess gasses from the crankcase to the PCV valve. From there, it is added to the intake manifold and used by the engine. If the PCV valve hose breaks, the gas will not be transferred back into the engine, and your vehicle will be less efficient and have increased emissions. There are a few symptoms to watch out for when you have a bad or failing PCV valve hose.

1. Poor fuel economy

If the PCV valve hose is clogged or has a leak, it may cause poor fuel economy. This is because the vacuum on the intake side of the cylinder head will not be able to properly signal the correct amount of fuel that needs to be fed into the engine and can result in a lean or rich engine condition. If you suspect a PCV valve hose is the reason you have been getting poor fuel economy, contact the professionals at YourMechanic to have your PCV valve hose replaced.

2. Check Engine Light comes on

The Check Engine Light may come on for a variety of reasons, and one of them is a failing PCV valve hose. This is because the PCV valve hose works directly with your engine to ensure everything is working properly. The mechanics at YourMechanic can diagnose the exact reason the Check Engine Light is on, whether it is the PCV valve hose, the PCV valve, or a combination of parts.

3. Misfiring while idling

Another symptom of a bad or failing PCV valve hose is your vehicle will misfire while it is idling. This can be from a loss of vacuum due to the hose not working properly because of a leak, the hose being pinched, or becoming clogged from buildup over time. A misfire will sound like the engine has a vibration to it is a sign it is not running properly.

4. Noise from the engine

If you hear a hissing sound from the engine, it is time to get your vehicle looked at. The PCV valve hose may have a leak in it, which is causing the hissing sound. Leaving this for too long can cause misfires, rough running, vacuum leaks and you will have a more extensive repair on your hands.

YourMechanic makes getting repairs to your PCV valve hose easy by coming to your home or office to diagnose or fix issues. You can book a service online 24/7. YourMechanic’s qualified Technicians are also available for any questions that may arise.

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Recent PCV Valve Hose Replacement reviews

Excellent Rating


YourMechanic PCV Valve Hose Replacement Service

Average Rating

4.7/5

Number of Reviews

55

Rating Summary
53
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2
53
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2

Patrick

12 years of experience
254 reviews
Patrick
12 years of experience
Islam was great and so nice. He was quick and helped me understand what was wrong with my car in a way I understood/
2003 FORD FOCUS - PCV VALVE HOSE - MIDLOTHIAN, VIRGINIA

Emmette

33 years of experience
269 reviews
Emmette
33 years of experience
He is very professional
2008 BMW 328I - PCV VALVE HOSE - FAIRFAX, VIRGINIA

Richard

8 years of experience
350 reviews
Richard
8 years of experience
Excellent Service!
2005 BMW X3 - PCV VALVE HOSE - SILVER SPRING, MARYLAND

Pardeep

18 years of experience
338 reviews
Pardeep
18 years of experience
Fantastic he is so kind and knowledgeable . I've already posted this company and Pardeep on my Facebook 
2004 BMW 330CI - PCV VALVE HOSE - SAN JOSE, CALIFORNIA

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