Cleaning Procedure
- Clean the water crossover in solvent.
Warning: Refer to Safety Glasses Warning in the Preface section.
- Dry the water crossover with compressed air.
Inspection Procedure
- Inspect the water crossover for the following:
| • | Corrosion or damage to the threads for the MAP sensor bracket bolt (1). |
| • | Corrosion or damage to the water pump drive belt tensioner/shield mounting bolt holes (2) |
| • | Corrosion or damage to the water pump sealing area (3) |
| • | Corrosion or damage to the gasket sealing surfaces (4) |
| • | Corrosion or damage to the plenum duct sealing area (5) |
- Inspect the water crossover for the following:
| • | Corrosion, restrictions or damage to the seal/gasket sealing surfaces for the following: |
| - | MAP sensor vacuum source port (1) |
| - | Brake booster vacuum hose source port fitting (2) |
| - | EVAP emission canister purge valve port (4) |
| - | EGR inlet pipe port (10) |
| - | Throttle body mounting surface (17) |
| • | Corrosion or damage to the threads for the following connections: |
| - | EVAP emission canister purge valve mounting bolt hole (3) |
| - | Fuel rail bracket mounting bolt hole (6) |
| - | EGR valve mounting bolt holes (7) |
| - | EGR inlet pipe mounting bolt holes (9) |
| - | Water pump cover bolt holes (13) |
| - | Engine coolant outlet fitting hole (15) |
| - | Engine lift bracket bolt holes (16) |
| • | Corrosion or damage to the throttle body fastener bolt holes (5) |
| • | Corrosion or damage to the heater inlet fitting (11) |
| • | Corrosion or damage to the fastener bolt holes (12) |
| • | Corrosion or damage to the radiator hose outlet (14) |
- Inspect for damage or serviceability the following components:
| • | Water pump cover and seal |
| • | Automatic transmission range selector lever clamp bracket |
| • | EVAP emission canister purge valve |
| • | Engine coolant outlet fitting |
- Repair or replace the water crossover and/or components as necessary.
