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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1355 (Automatic Transmission - ALLISON - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Repair Instructions - Off Vehicle >> Transmission Vent Removal

Transmission Vent Removal

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Transmission Case Vent
    GM1216973Courtesy of GENERAL MOTORS CORP.
  1. Gently pry the vent (2) from the transmission case.
  2. If the vent cap (1) comes off, gently pry the stem from the transmission case.