LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 2004 >> Liberty Limited, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Emissions Control System >> PCV Valve >> Installation >> 3.7L
April 5, 2026: LEMON Manuals is launched! Read the announcement.

PCV Valve: Installation: 3.7L

The PCV valve is located on the oil filler tube. Two locating tabs are located on the side of the valve. These 2 tabs fit into a cam lock in the oil filler tube. An o-ring seals the valve to the filler tube.

  1. Return PCV valve back to oil filler tube by placing valve locating tabs into cam lock. Press PCV valve in and rotate valve upward. A slight click will be felt when tabs have engaged cam lock. Valve should be pointed towards rear of vehicle.
  2. Connect PCV line/hose and rubber hose to PCV valve.