Engine Coolant Air Bleed Pipe and Hole Cover Removal
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
 Courtesy of GENERAL MOTORS COMPANY
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Remove the engine coolant air bleed pipe bolts (309).
- Remove the pipe (307) with seals (308).
 Courtesy of GENERAL MOTORS COMPANY
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Remove the engine coolant air bleed cover bolts (312).
- Remove the covers (313) with seals (308).
 Courtesy of GENERAL MOTORS COMPANY
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Remove the seals (308) from the pipe and covers.
- Discard the seals.