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Honda Pilot 3.5L V6 PCV Valve Replacement Guide
How to change the PCV valve on the 3.5L i-VTEC SOHC 24V V6 engine in a 2nd generation 2009 to 2015 Honda Pilot.

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2012 Pilot 3.5L V6 Engine
1/4 Turn Counterclockwise
Engine Cover Fasteners
This automotive maintenance tutorial was specifically written to assist owners of the second generation (2009, 2010, 2011, 2012, 2013, 2014 & 2015) Honda Pilot SUV in checking or changing the PCV (positive crankcase ventilation) valve in the 3.5 liter i-VTEC SOHC 24V V6 engine.

Owner's of other Honda or Acura vehicles such as the Odyssey, Insight, Ridgeline, CR-V, Fit, Civic, CR-Z, Crosstour, Accord, MDX, RDX, RLX, TL, TSX and ILX may also find these DIY instructions to be helpful.

A few compatible replacement PCV valves with their part numbers are as follows: Standard Motor Products V384 PCV, Wells PCV374, OES W0133-1709800-OES and Purolator PV1070.

The tools needed to complete this procedure include a flathead screwdriver, a 10mm socket and a 1/4" drive ratchet.

1/4 Turn Counterclockwise
Pull Off Plastic Engine Cover
Top of Engine Exposed
The first two steps are to open the hood and then locate the plastic fasteners that secure the front of the engine cover in place.

Rotate the two plastic fasteners 1/4 turn counterclockwise to unlock them.

Gently pull off the plastic engine cover and set it aside in a safe place.

The PCV valve is located at the front right corner of the 3.5L V6 engine on the passenger side of the vehicle.

It is near the oil filler cap and by the electrical fuse box.

Front Right Corner of Engine
Pointing To PCV Location
Black Plastic PCV Valve
In the middle picture above, I'm pointing to the PCV valve location with a red handled screwdriver.
View of PCV Valve
Silver Metal 10mm Bolt
10mm Socket & Wrench
The PCV valve is held in place by one bolt.
Loosen Counterclockwise
Spin Out Bolt By Hand
10mm Bolt Removed
Loosen the bolt by turning it counterclockwise with the 10mm socket and 1/4" drive ratcheting wrench. You may need a short extension bar to easily loosen the bolt.

Once the bolt has been loosened, spin it out the rest of the way by hand to prevent from having fall down in to the engine bay.

Set the bolt aside in a safe place.


Gently Pry Out PCV Valve
Old PCV Valve Removed
Inspect & Shake
If you have trouble pulling the old PCV valve out of the engine, you may need to use a flathead screwdriver to gently pry it out.

Inspect the old PCV valve and shake it vigorously. If the valve still makes a healthy sounding rattle sound when you shake it, it can most likely be used again. You may also choose to clean it with carburetor cleaner spray or Sea Foam engine cleaner.

Since it is such a cheap part, I'd recommend purchasing a new PCV valve.

I recommend buying the Standard Motor Products V384 PCV since it has excellent reviews on Amazon.

Clean Old PCV Valve
PCV Valve Housing
Slide In New PCV Valve
Slide the new or cleaned PCV valve back in to the housing.
New PCV Valve Installed
10mm Bolt Attached To Socket
Spin In Clockwise
I attached the 10mm bolt to my socket with some blue painter's tape to keep it from falling down in to the engine bay.

Spin in the 10mm bolt a few turns in the clockwise direction by hand to prevent it from becoming cross threaded.

Tighten 10mm Clockwise
PCV Valve Secured
Replace Engine Cover
Attach the ratcheting wrench to the socket and tighten the 10mm bolt in the clockwise direction until it is snug.

Try to avoid over tightening the 10mm bolt to prevent from cracking the plastic mounting loop.

Double check that the bolt is secure before moving on to the next steps.

1/4 Turn Clockwise - Lock
Engine Cover Secured
PCV Valve Replaced
Gently lower the plastic engine cover back in to place.

Rotate the two engine cover fasteners 1/4 turn clockwise to secure them.

Be sure to record the PCV valve change in your Pilot's service records.

For more, please check out my other 2009-2015 Honda Pilot DIY Repair & Maintenance Guides.

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