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.