GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2001 🢒 DeVille 🢒 Engine 🢒 Engine Mechanical - 4.6L 🢒 Water Crossover Disassemble

Water Crossover Disassemble Seville/DeVille

Tools Required

J 38816-A Water Pump Remover/Installer


    Object Number: 639830 Size: SH
  1. Remove the heater inlet pipe fitting.

    2. Object Number: 522707 Size: SH
  2. Remove the engine coolant outlet fitting.
  3. Remove the rear lift bracket bolt.
  4. Remove the rear lift bracket.

    5. Object Number: 522706 Size: SH
  5. Remove the EVAP emission canister purge valve bolts.
  6. Remove the EVAP emission canister purge valve.

    7. Object Number: 522705 Size: SH
  7. Remove the EGR bracket shield nut.
  8. Remove the EGR bracket shield.

    9. Object Number: 522703 Size: SH
  9. Remove the EGR valve bolts.
  10. Remove the EGR valve.
  11. Remove the EGR gasket.

    12. Object Number: 522701 Size: SH
  12. Remove the throttle body bolts.
  13. Remove the throttle body and plenum duct.
  14. Discard the plenum duct, do not reuse.

    15. Object Number: 522700 Size: SH
  15. Remove the accelerator control cable bracket bolts.
  16. Remove the accelerator control cable bracket.

    17. Object Number: 522699 Size: SH
  17. Remove the MAP sensor.

    18. Object Number: 522698 Size: SH
  18. Remove the water pump cover bolt and studs.
  19. Remove the water pump cover.

    20. Object Number: 522696 Size: SH
  20. Remove the water outlet bolts.
  21. Remove the water outlet and thermostat.
  22. Remove the water pump cover gasket.

    23. Object Number: 637030 Size: SH
  23. Remove the water pump and seal using the following procedure:
    24. 23.1. Index the J 38816-A socket into the water pump.
    23.2. Align the J 38816-A support plate on the water crossover.
    23.3. Install the J 38816-A support plate on the water crossover using the water pump cover bolts.
    23.4. Unlock the water pump from the water crossover by turning the J 38816-A socket clockwise.
    23.5. Remove the J 38816-A support plate from the water crossover.
    23.6. Remove the J 38816-A socket.
    23.7. Remove the water pump.
    23.8. Remove the water pump seal and discard.

Water Crossover Disassemble Eldorado

Tools Required

J 38816-A Water Pump Remover/Installer


    Object Number: 639832 Size: SH
  1. Remove the heater inlet hose fitting.

    2. Object Number: 522922 Size: SH
  2. Remove the engine coolant outlet fitting.
  3. Remove the rear lift bracket bolt.
  4. Remove the rear lift bracket.

    5. Object Number: 522706 Size: SH
  5. Remove the EVAP emission canister purge valve bolts.
  6. Remove the EVAP emission canister purge valve.

    7. Object Number: 522705 Size: SH
  7. Remove the EGR bracket shield nut.
  8. Remove the EGR bracket shield.

    9. Object Number: 522703 Size: SH
  9. Remove the EGR valve bolts.
  10. Remove the EGR valve.
  11. Remove the EGR gasket.

    12. Object Number: 522701 Size: SH
  12. Remove the throttle body bolts.
  13. Remove the throttle body and plenum duct.
  14. Discard the plenum duct, do not reuse.

    15. Object Number: 522700 Size: SH
  15. Remove the accelerator control cable bracket bolts.
  16. Remove the accelerator control cable bracket.

    17. Object Number: 522699 Size: SH
  17. Remove the MAP sensor.

    18. Object Number: 522698 Size: SH
  18. Remove the water pump cover bolt and studs.
  19. Remove the water pump cover.

    20. Object Number: 522696 Size: SH
  20. Remove the water outlet bolts.
  21. Remove the water outlet and thermostat.
  22. Remove the water pump cover gasket.

    23. Object Number: 637030 Size: SH
  23. Remove the water pump and seal using the following procedure:
    24. 23.1. Index the J 38816-A socket into the water pump.
    23.2. Align the J 38816-A support plate on the water crossover.
    23.3. Install the J 38816-A support plate on the water crossover using the water pump cover bolts.
    23.4. Unlock the water pump from the water crossover by turning the J 38816-A socket clockwise.
    23.5. Remove the J 38816-A support plate from the water crossover.
    23.6. Remove the J 38816-A socket.
    23.7. Remove the water pump.
    23.8. Remove the water pump seal and discard.