Step 3. PCV Channel

Step 3. PCV (or breather) channel
Remove the PCV box and photograph the channel on the intake side of the diaphragm, shown in Photo 3. This photo will be requested by the Prior Approval department. Also include your dealer and the vehicle's chassis number in the photo.

Include a placard with all photos going forward so we don't mix-
up photo files by accident. Use the back side of a business card
to display the 4 digit dealer code and the 6 digit chassis number.
No other details or labels are needed on the placard. Place the
placard in the area of the photo subject, not on top of it.

Frame the photo so the cavity closest to the vacuum source (next
to the exhaust cam position sensor) is completely visible. It is
best to position your camera directly above this area looking
straight down instead of taking the shot from an angle so the
bottom of the cavity is clearly seen in the photo.

Oil in the small breather channel can be the result of multiple issues such as the engine being overfilled with oil, a defective breather box, excessive crankcase pressure or other. Oil in the small breather channel will be vented into the cylinders causing carbon build-up in the cylinders starting with cylinder # 6.

AT THIS POINT PRIOR APPROVAL SHOULD BE CONTACTED fill out the form
found on the prior approval website and submit it before any repairs are made.