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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 168 (Engine Mechanical - 3.6L (LGX LF4) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Cylinder Head Cleaning and Inspection >> Cleaning Procedure

Cleaning Procedure

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ensure proper use of room temperature vulcanizing (RTV) sealant. Refer to Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant
  2. Remove any old thread sealant, gasket material or sealant using EN-28410  remover.
  3. Clean all cylinder head surfaces with non-corrosive solvent.
    4. WARNING:

    Refer to Safety Glasses Warning .

  4. Blow out all the oil galleries using compressed air.
  5. Remove any carbon deposits from the combustion chambers using the GE-8358  brush.
  6. Clean any debris or build-up from the lifter pockets.
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