Cleaning Procedure
- Clean the water crossover in solvent.
Caution: Wear safety glasses in order to avoid eye damage.
- Dry the
water crossover with compressed air.
Inspection Procedure
- Inspect the water crossover for the following:
| • | Corrosion, leakage or damage to the engine coolant plug (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) |
| - | Fuel pressure regulator vacuum tube source port fitting (3) |
| - | EVAP emission canister purge valve port (4) |
| - | EGR inlet pipe port (10) |
| - | Throttle body mounting surface (18) |
| - | A.I.R. valve vacuum tube source port (19) |
| • | Corrosion or damage to the threads for the following connections: |
| - | EVAP emission canister purge valve mounting bolt hole (5) |
| - | Fuel rail bracket mounting bolt hole (6) |
| - | EGR valve mounting bolt holes (7) |
| - | EGR inlet pipe mounting bolt holes (9) |
| - | Heater inlet fitting hole (11) |
| - | Water pump cover bolt holes (13) |
| - | Engine coolant outlet fitting hole (16) |
| - | Engine lift bracket bolt holes (17) |
| • | Corrosion or damage to the fastener bolt holes (12) |
| • | Corrosion or damage to the water pump mounting tabs (14) |
| • | Corrosion or damage to the radiator hose outlet (15) |
- Inspect for damage or serviceability the following components:
| • | Water pump cover and seal |
| • | Accelerator control cable bracket |
| • | EVAP emission canister purge valve |
| • | Engine coolant outlet fitting |
- Repair or replace the water crossover and/or components as necessary.
