The PCV valve on a 2009 Honda Accord is located on the engine’s valve cover, on the passenger side toward the rear near the firewall, connected by a vacuum hose to the intake manifold. The exact position varies slightly between the 2.4-liter four-cylinder and the 3.5-liter V6, but both placements are on or in the valve cover with a hose running to the intake.
Engine variants and PCV locations
The 2009 Accord was offered with two main powertrains. The four-cylinder version and the V6 both place the PCV valve on or in the valve cover, with the hose routing to the intake manifold. The 2.4L I4 (engine code typically K-series) has the PCV valve toward the rear of the passenger-side valve cover; the 3.5L V6 has its PCV valve on the rear of the right-hand valve cover near the firewall.
To help you locate it more precisely, use these guidelines:
- 2009 Honda Accord 2.4L four-cylinder: PCV valve sits in the valve cover on the passenger side toward the rear, with a short vacuum hose running to the throttle body/intake manifold.
- 2009 Honda Accord 3.5L V6: PCV valve sits at the rear of the right-side valve cover (the passenger-side bank) with a hose to the intake manifold near the throttle body.
The PCV valve is a small cylindrical component, typically black, with a hose connected. Access may require moving or removing parts of the air intake to reach it.
How to inspect or replace the PCV valve
Before replacing the PCV valve, inspect the hose for cracks or clogs and test the valve to confirm it’s functioning. A rattling valve typically indicates it's OK; a stiff or blocked valve should be replaced.
- Identify the valve by following the hose from the valve cover to the intake manifold. Note the engine variant to target the correct location.
- Carefully disconnect the hose from the PCV valve and remove the valve from its mounting, which is usually a grommet or threaded fitting on the valve cover.
- Install a new OEM or manufacturer-recommended PCV valve, reconnect the hose, and ensure a snug, leak-free seal.
- Start the engine and check for smooth idle and no vacuum leaks around the valve cover area.
If you’re uncertain about the replacement procedure or access is difficult, consider having a professional mechanic perform the replacement to avoid damage or leaks.