Transfer Case Vent: Installation

2007 Ford Escape Base, 2.3 Z, FWD, AutomaticSECTION Installation
WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. 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: Identifying Distance Between PTU Cover And Vent
      G04621143Courtesy of FORD MOTOR CO.
  2. CAUTION: Do not apply silicone sealant to the power transfer unit (PTU) vent hole as it may cause damage to the PTU internal components.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.