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Home >> Cadillac >> 2005 >> STS 3.6 7 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Mechanical - 4.6L (LH2) (5 Of 6)) >> Off-Vehicle Repair Instructions - Part 3 >> Water Outlet Housing Cleaning and Inspection >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Inspecting Front Of Water Outlet Housing
    GM1041044Courtesy of GENERAL MOTORS CORP.
  1. Inspect the front of the water outlet housing for the following:
    • Damage or restrictions to the radiator hose connection (1)
    • Damage to the threads for the heater hose fitting (2)
    • Damage to the threads for the throttle body bolts (3)
    • Damage to the threads for the engine coolant air bleed fitting (4)
    • Damage to the water outlet housing-to-cylinder head mounting holes (5)
    • Damage or restrictions to the bypass hose connection (6)
    2. Fig 2: Inspecting Rear Of Water Outlet Housing
    GM1041052Courtesy of GENERAL MOTORS CORP.
  2. Inspect the rear of the water outlet housing for the following:
    • Damage, blockage or excessive corrosion to the engine coolant passages (1)
    • Damage or restrictions to the EVAP purge solenoid port (2)
    • Damage to the threads for the EVAP purge solenoid bolt (3)
    • Damage to the sealing surface for the intake manifold duct (4)
    • Damage or restrictions to the MAP sensor port (5)
    • Damage to the threads for the MAP sensor bolt (6)
  3. Repair or replace the water outlet housing as necessary.
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