57. Water Crossover Clean and Inspect

Cleaning Procedure





1. 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.