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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 682 (Engine Mechanical - 8.1L (Unit Repair)) >> Repair Instructions >> Water Crossover Cleaning and Inspection (C/K/G/C3500HD) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect the coolant crossover (7) for the following:
    • Corrosion or damage to the gasket sealing surfaces (5)
    • Corrosion or damage to the bypass hose fitting (6)
    • Corrosion or damage to the heater hose fitting (8)
    • Corrosion or damage to the threads for the water outlet (4)
  2. Inspect the water outlet (1) for corrosion or damage.
  3. Repair or replace the coolant crossover and/or water outlet as necessary.
    Fig 1: Water Crossover Inspection Areas (C/K/G/C3500HD)
    G01675540Courtesy of GENERAL MOTORS CORP.
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