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Home >> GMC >> 2021 >> Yukon XL AT4 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 5.3L (L84) Or 6.2L (L87) - Repair Instructions ( 5 Of 12) >> Repair Instructions >> Cylinder Head Overhaul >> Cleaning Procedure

Cleaning Procedure

WARNING:

Refer to Safety Glasses Warning .

NOTE:
  • When cleaning a cylinder head in a thermal type oven, do Not exceed 204°C (400°F).
  • Be careful not to scuff the chamber.

Clean the following components: