Transfer Case Vent: Installation

WARNING: This page is about a different variant/trim than selected.

Inspect the condition of the PTU vent hole.
- By hand, insert the new PTU vent into the PTU cover and measure the distance between the PTU cover and the vent as indicated.
- If the measurement is less than specification, install a new PTU .
Fig 1: Measuring Distance Between PTU Cover And Vent With Specifications
Courtesy of FORD MOTOR CO.

NOTE: Do not apply silicone sealant to the Power Transfer Unit (PTU) vent hole as it may cause damage to the PTU internal components.

Fig 2: Identifying Bead Of Silicone Gasket And Sealant Applying Area On Transfer Case Vent

Courtesy of FORD MOTOR CO.

NOTE: Drive the PTU vent in until the Vent Tube Installer bottoms out against the PTU rear cover boss.

Fig 3: Installing PTU Vent Using Vent Tube Installer

Courtesy of FORD MOTOR CO.

Using the Vent Tube Installer, install the PTU vent.
Measure the depth of the PTU vent.
- If the vent is too high, repeat Step 3.
Fig 4: Measuring Depth Of Transfer Case Vent With Specifications
Courtesy of FORD MOTOR CO.

NOTE: Make sure the Power Transfer Unit (PTU) vent boot is correctly aligned or damage to the components may occur.

NOTE: Use a soapy water solution to lubricate the PTU breather boot.

Fig 5: Identifying PTU Vent Boot

Courtesy of FORD MOTOR CO.

Install the PTU vent boot.
Install the PTU . For additional information, refer to POWER TRANSFER UNIT (PTU) in the Installation portion of this service information.