The PCV valve in the 2004 Volvo S40 is located on the top of the engine, behind the intake manifold. It is a small, black plastic valve with two hoses connected to it. One hose goes to the intake manifold, and the other goes to the crankcase.
Here are some step-by-step instructions on how to locate the PCV valve in a 2004 Volvo S40:
1. Open the hood of the car.
2. Locate the intake manifold. It is a large, black plastic part that runs across the top of the engine.
3. Behind the intake manifold, you will see a small, black plastic valve with two hoses connected to it. This is the PCV valve.
To remove the PCV valve, follow these steps:
1. Disconnect the hoses from the PCV valve.
2. Use a wrench to loosen the PCV valve.
3. Remove the PCV valve from the engine.
When you install the new PCV valve, be sure to tighten it securely. A loose PCV valve can cause the engine to run rough or stall.
