Engine Coolant Air Bleed Pipe and Hole Cover Cleaning and Inspection 5.3L
                    
Note: Do not use the engine coolant air bleed pipe and cover seals again. Upon installation of the pipe and covers, install NEW seals.
- Remove the seals (308) from the pipe (307) and covers.
 
- Clean the pipe and covers in solvent.
 
Warning: Refer to Safety Glasses Warning in the Preface section.
- Dry the pipe and covers with compressed air.
 
- Inspect the pipe and covers for damaged sealing surfaces or restrictions within the pipe.
 
                            Engine Coolant Air Bleed Pipe and Hole Cover Cleaning and Inspection 6.0L
                    
Note: Do not use the engine coolant air bleed pipe and cover gaskets again. Upon installation of the pipe and covers, install NEW gaskets.
- Remove the seals (308) from the pipe (307) and covers.
 
- Clean the pipe and covers in solvent.
 
Warning: Refer to Safety Glasses Warning in the Preface section.
- Dry the pipe and covers with compressed air.
 
- Inspect the pipe and covers for damaged sealing surfaces or restrictions within the pipe.