57. Water Crossover Clean and Inspect
Cleaning Procedure1. Clean the water crossover in solvent. Caution: Wear safety glasses in order to avoid eye damage.
2. Dry the water crossover with compressed air.
Inspection Procedure
1. Inspect the water crossover for the following:
^ Corrosion or damage to the threads for the following connections:
^ Engine lift bracket bolt holes (1)
^ EGR inlet pipe mounting bolt hole (3)
^ Corrosion or damage to the radiator hose outlet (2)
^ Corrosion or damage to the water pump drive belt tensioner/shield mounting bolt holes (5)
^ Corrosion, damage or restrictions to the seal/gasket sealing surfaces for the following:
^ EGR inlet pipe port (4)
^ Water pump sealing area (6)
^ Water crossover gasket sealing surfaces (7)
^ Corrosion, damage or restrictions to the EGR passages (8)
^ Corrosion, leakage or damage to the engine coolant plug (9)
2. Inspect the water crossover for the following:
^ Corrosion, leakage or damage to the engine coolant plug (1)
^ Corrosion or damage to the heater hose fitting (6)
^ Corrosion or damage to the water crossover bolt holes (7)
^ Corrosion or damage to the water pump mounting tabs (9)
^ Corrosion, restrictions or damage to the seal/gasket sealing surfaces for the following:
^ EGR valve ports (3)
^ EGR pipe port (5)
^ Corrosion or damage to the threads for the following connections: - EGR valve mounting bolt holes (2) - EGR pipe mounting bolt holes (4) - Heater hose fitting hole (6) - Water pump cover bolt holes (8) - Throttle body engine coolant outlet fitting hole (10)
3. Inspect for damage or serviceability the following components:
^ Water pump and seal
^ Thermostat and seal
^ Water outlet
^ Water pump cover and seal
^ EGR valve
^ Rear engine lift bracket
^ Throttle body engine coolant outlet fitting
^ Heater hose fitting
^ Bolts and fasteners
4. Repair or replace the water crossover and/or components as necessary.