PCV valve problems:

Read how to change your PCV valve and prevent trouble.

PCV valve problems: change your PCV valve regularly to prevent trouble.

PCV is an acronym for positive crankcase ventilation. The PCV valve is only one half of the crankcase ventilation system. The other half is called the breather. The breather flows clean air into the crankcase through a hose on your air filter. The valve lets dirty air and crankcase gases out, and sends them through your engine to be reburned for clean emissions.

When the valve fails, the system backs up and can foul your air filter and fuel system with oil.

Ask your Advance Auto Parts Team Member for help finding the right PCV valves, hoses and valve cover grommets for your vehicle – along with other quality auto parts.

Why you should replace PCV valves every 20,000 miles:

A clogged or malfunctioning valve causes excessive buildup of combustion blow-by gases inside your engine. This build up may cause excessive oil consumption, oil leakage, air filter contamination and rough engine idle. Replace PCV valves regularly for optimum engine performance.

What you will need to change when changing PCV valves:

Do-it-yourself difficulty guide for replacing PCV valves:


Estimated time required - 30 Minutes

Help prevent PCV valve problems on your own and save money:

  1. Check the condition of the hoses and valve cover grommet when replacing PCV valves. Replace any cracked, spongy, or sticky hoses and grommets.
  2. Locate and remove the valve from the valve cover. Consult your owner’s or repair manual for exact location.
  3. Remove the other end of the valve from the hose. Reverse removal procedure with the new valve. Check the connections.

Go to Advance Auto Parts for high quality auto parts for all your vehicle maintenance needs – and save money.