PCV Valve (2003-2008 Corolla) - https://amzn.to/44juyTe
PCV Valve (2009-2022 Corolla) - https://amzn.to/3xU0WQi


Welcome back to PracticalMechanic.com, where we're tackling common car issues head-on, saving you time and money in the process! If you're experiencing the frustration of your Toyota Corolla burning oil, don't worry. Today, we've got a straightforward solution that might solve your problem.

In this video, we'll talk about PCV valves—what they are, why they're crucial, and how to replace them, specifically in a 2003-2008 Toyota Corolla.

What is a PCV Valve and Why Does it Matter?
PCV stands for Positive Crankcase Ventilation. Essentially, it's a simple but vital component in your car's engine system responsible for recycling harmful gases that accumulate in the crankcase. Over time, this valve can get clogged, leading to increased pressure and oil contamination, causing your Corolla to burn oil and reduce engine efficiency.

How Often Should You Replace Your PCV Valve?
While it varies from vehicle to vehicle, a general rule of thumb is to replace your PCV valve every 50,000 miles. However, if you're experiencing symptoms of a faulty PCV valve, it's wise to check and replace it sooner rather than later.

Symptoms of a Bad PCV Valve
Increased oil consumption
Excessive smoke from the exhaust
Rough idling or engine misfires
Decreased fuel efficiency

Description of How to Replace the PCV Valve in Your 2003-2008 Toyota Corolla

Tools:
Ratchet
22mm deep-well socket or Wrench
10mm wrench
New PCV valve
Pliers
Clean rag or paper towels

In the 2003-2008 Toyota Corolla models, the PCV valve is typically located on the valve cover or in the vicinity of the intake manifold. Refer to your vehicle's service manual for exact placement.

Remove the Old PCV Valve: Using a ratchet and socket, carefully loosen the PCV valve and remove it.
Inspect and Clean: Use a clean rag or paper towels to wipe away any debris or oil residue from the valve housing.
Install the New PCV Valve: With the old PCV valve removed and the housing cleaned, it's time to install the new one. Simply insert the new PCV valve into the housing and tighten the retaining bolt securely with your ratchet and socket. Don't overdo it. For a 2003-2008 Toyota Corolla, torque the PCV valve to 22 ft-lbs.
Test and Double-Check: Once the new PCV valve is in place, start up your Toyota Corolla and let it idle for a few minutes. Listen for any unusual sounds or vibrations and check for leaks around the PCV valve housing. If everything looks and sounds good, you're all set!

Congratulations! You've successfully replaced the PCV valve in your Toyota Corolla.

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