The PCV valve is on the engine’s valve cover on the passenger (right) side of the 2.4-liter engine, connected to the intake manifold by a short vacuum hose. Access is easiest with the air intake duct or engine cover removed.
In these CR-Vs, the PCV valve functions as a one-way valve that draws crankcase vapors into the intake to be burned in the cylinders. If it becomes clogged or stuck, it can cause rough idle, increased oil consumption, and vacuum leaks. To locate it, trace the hose from the throttle body or intake manifold back to the valve cover; the valve sits inline in that hose or mounted in a grommet on the valve cover.
Location and access
The PCV valve on the 2010 CR-V is typically mounted in or very near the valve cover on the passenger side of the engine. It connects to a short vacuum hose that leads to the intake manifold or throttle body. In some setups it may be tucked behind hoses or brackets, so you may need to loosen or remove the air intake duct or a cover to see it clearly.
What you will see
You are looking for a small black plastic valve seated in a valve-cover grommet or in-line with a short hose. A hose runs from the PCV valve to a vacuum port on the intake manifold or throttle body. The assembly is modest in size and can be obscured by surrounding cables or hoses.
To confirm the exact placement, follow the hose from the throttle body toward the valve cover; the PCV valve will be where that hose meets the valve cover.
Replacement steps
Prepare to replace with the engine cool and the vehicle on a stable surface. Gather common hand tools and the correct PCV valve for the 2.4L CR-V engine before you start.
- Park on a level surface, set the parking brake, and disconnect the negative battery terminal if you’ll be removing components near electrical connections.
- Remove any obstructing parts such as the air intake duct or engine cover to access the valve cover area.
- Trace and detach the vacuum hose from the PCV valve and inspect the hose for cracks or stiffness; replace the hose if needed.
- Remove the PCV valve from the valve cover (twist/pull or unscrew, depending on the design).
- Inspect the valve and the surrounding grommet; replace with a new PCV valve and, if necessary, the grommet or hose assembly.
- Install the new PCV valve into the valve cover and reconnect the vacuum hose, ensuring a snug, leak-free fit.
- Reinstall the air intake duct/engine cover, reconnect the battery, start the engine, and check for a smooth idle and any vacuum leaks around the valve cover area.
A functioning PCV system helps control crankcase pressure and reduces emissions, so replacing a faulty valve is a common and inexpensive maintenance task on the 2010 CR-V.
Tools and precautions
Typical tools include pliers, screwdrivers, ratchet set, and a replacement PCV valve matched to the 2.4L engine. Always work with the engine cool and avoid twisting hoses or damaging clips during disassembly.
Symptoms of PCV valve failure
- Rough idle, stalling, or misfires at idle
- Increased oil consumption or oil leaks around the valve cover
- Vacuum leaks or a hissing sound from the engine bay
- Check Engine Light with related codes (often tied to vacuum/air-fuel balance)
If you notice these signs, inspect the PCV valve and related hoses and replace if clogged or damaged. Regular inspection as part of routine maintenance—roughly around the 60,000-mile mark or per your owner’s manual—helps prevent issues.
Summary
The PCV valve on a 2010 Honda CR-V sits on the passenger-side valve cover of the 2.4L engine, connected to the intake manifold by a short vacuum hose. It’s accessible from above with the intake duct removed, and replacing it is a straightforward task that can improve idle quality and reduce oil burning. When in doubt, consult Honda’s service manual or a trusted repair guide for the exact location and replacement procedure for your VIN.