GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Caprice WM 🢒 Engine 🢒 Engine Mechanical - 6.0L 🢒 Engine Wiring Harness Assembly Removal

Engine Wiring Harness Assembly Removal SWBLHD

    Important: Steps 1 - 5 refer to the 4L60E 4 speed automatic transmission only.


    Object Number: 1954048 Size: SH
  1. Disconnect the park/neutral position switch electrical connector (1).
  2. Detach the engine wiring loom assembly (3) from the retaining clip (2).
  3. Detach the engine wiring loom assembly (3) from the retaining clip (4).
  4. Disconnect the main transmission electrical connector (5).
  5. Disconnect the vehicle speed sensor electrical connector (6).

    6. Important: Steps 6 and 7 refer to the T56 6 speed manual transmission only.


    Object Number: 1954050 Size: SH
  6. Detach the engine wiring loom assembly (2) from the retaining clip (1).
  7. Disconnect the reverse switch assembly electrical connector (3).

    8. Object Number: 1951065 Size: SH
  8. Remove the starter motor heat shield to starter motor retaining bolts (1).
  9. Remove the heat shield from the vehicle (2).

    10. Object Number: 1994663 Size: SH
  10. Disconnect the starter motor solenoid electrical connector (1).
  11. Remove battery positive cable retaining nut (2) from the starter motor.

    12. Object Number: 1954042 Size: SH
  12. Remove starter motor to bell housing retaining bolts (1).
  13. Remove the starter motor (2).

    14. Object Number: 1954045 Size: SH
  14. Disconnect the crankshaft position (CKP) sensor electrical connector (1).

    15. Object Number: 1954046 Size: SH
  15. Disconnect the oil level/temperature sensor electrical connector (2).
  16. Disconnect the right side knock sensor electrical connector (1).

    17. Object Number: 1954087 Size: SH
  17. Disconnect the right side fuel injector wiring harness connectors (1).
  18. Remove the CPA lock (7) from the right side ignition coil main connector (6).
  19. Disconnect the right side ignition coil main connector (6).
  20. Disconnect the canister purge valve (5) wiring harness connector.
  21. Disconnect the manifold absolute pressure (MAP) sensor wiring harness connector (3).
  22. Reposition and secure the right side fuel injector wiring harness (4) away from the intake manifold (2).

    23. Object Number: 1950915 Size: SH
  23. Remove the vehicle body ground cable to cylinder head retaining nut (1).
  24. Remove the vehicle body ground cable (3) from the cylinder head stud (2).

    25. Object Number: 1950917 Size: SH
  25. Remove the cylinder head stud (3) from the cylinder head (2) and secure the wiring harness ground (1) away from the cylinder head (2).

    26. Object Number: 1951049 Size: SH
  26. Disconnect the A/C electrical connector (1).

    27. Object Number: 1957879 Size: SH
  27. Disconnect the electrical connector from the A/C Refrigerant Pressure Sensor (1).

    28. Object Number: 1954085 Size: SH
  28. Disconnect the electronic throttle body wiring harness connector (1).

    29. Object Number: 1950900 Size: SH

    Important: The locking tang on the power steering reservoir bracket (1) must be released before removing the power steering reservoir (2).

  29. Remove the power steering reservoir (2) from the power steering pump power steering reservoir bracket (1) and position the power steering reservoir (2) aside.

    30. Object Number: 1954088 Size: SH
  30. Disconnect the camshaft position sensor connector (4).
  31. Disconnect the coolant temperature sensor connector (3).
  32. Detach the wiring harness retaining clip (2) from the engine lifting bracket (1).

    33. Object Number: 1954054 Size: SH

    Important: Press the retainer tabs to remove electrical connector.

  33. Disconnect the alternator electrical connector (1).

    34. Object Number: 1954086 Size: SH
  34. Disconnect the left side fuel injector wiring harness connectors (2).
  35. Remove the CPA lock (4) from the left side ignition coil main connector (3).
  36. Disconnect the left side ignition coil main connector (3).
  37. Reposition and secure the left side fuel injector wiring harness (5) away from the intake manifold (1).

    38. Object Number: 1954047 Size: SH
  38. Disconnect the oil pressure sensor electrical connector (1).
  39. Detach the wiring harness assembly retaining clip (2) from the left side cylinder head (4).
  40. Remove the wiring harness assembly earth to cylinder head retaining bolt (3)

Engine Wiring Harness Assembly Removal LWBLHD

    Important: Steps 1 - 5 refer to the 4L60E 4 speed automatic transmission only.


    Object Number: 1954048 Size: SH
  1. Disconnect the park/neutral position switch electrical connector (1).
  2. Detach the engine wiring loom assembly (3) from the retaining clip (2).
  3. Detach the engine wiring loom assembly (3) from the retaining clip (4).
  4. Disconnect the main transmission electrical connector (5).
  5. Disconnect the vehicle speed sensor electrical connector (6).

    6. Important: Steps 6 - 8 refer to the 6L80E 4 speed automatic transmission only.


    Object Number: 1954055 Size: SH
  6. Disconnect the heated oxygen sensor electrical connector (1).
  7. Detach the engine wiring loom assembly (2) from the retaining clip (3).
  8. Disconnect the main transmission electrical connector (4).

    9. Object Number: 1951065 Size: SH
  9. Remove the starter motor heat shield to starter motor retaining bolts (1).
  10. Remove the heat shield from the vehicle (2).

    11. Object Number: 1994663 Size: SH
  11. Disconnect the starter motor solenoid electrical connector (1).
  12. Remove battery positive cable retaining nut (2) from the starter motor.

    13. Object Number: 1954042 Size: SH
  13. Remove starter motor to bell housing retaining bolts (1).
  14. Remove the starter motor (2).

    15. Object Number: 1954045 Size: SH
  15. Disconnect the crankshaft position (CKP) sensor electrical connector (1).

    16. Object Number: 1954046 Size: SH
  16. Disconnect the oil level/temperature sensor electrical connector (2).
  17. Disconnect the right side knock sensor electrical connector (1).

    18. Object Number: 1954087 Size: SH
  18. Disconnect the right side fuel injector wiring harness connectors (1).
  19. Remove the CPA lock (7) from the right side ignition coil main connector (6).
  20. Disconnect the right side ignition coil main connector (6).
  21. Disconnect the canister purge valve (5) wiring harness connector.
  22. Disconnect the manifold absolute pressure (MAP) sensor wiring harness connector (3).
  23. Reposition and secure the right side fuel injector wiring harness (4) away from the intake manifold (2).

    24. Object Number: 1950915 Size: SH
  24. Remove the vehicle body ground cable to cylinder head retaining nut (1).
  25. Remove the vehicle body ground cable (3) from the cylinder head stud (2).

    26. Object Number: 1950917 Size: SH
  26. Remove the cylinder head stud (3) from the cylinder head (2) and secure the wiring harness ground (1) away from the cylinder head (2).

    27. Object Number: 1951049 Size: SH
  27. Disconnect the A/C electrical connector (1).

    28. Object Number: 1957879 Size: SH
  28. Disconnect the electrical connector from the A/C Refrigerant Pressure Sensor (1).

    29. Object Number: 1954085 Size: SH
  29. Disconnect the electronic throttle body wiring harness connector (1).

    30. Object Number: 1950900 Size: SH

    Important: The locking tang on the power steering reservoir bracket (1) must be released before removing the power steering reservoir (2).

  30. Remove the power steering reservoir (2) from the power steering pump power steering reservoir bracket (1) and position the power steering reservoir (2) aside.

    31. Object Number: 1954088 Size: SH
  31. Disconnect the camshaft position sensor connector (4).
  32. Disconnect the coolant temperature sensor connector (3).
  33. Detach the wiring harness retaining clip (2) from the engine lifting bracket (1).

    34. Object Number: 1954054 Size: SH

    Important: Press the retainer tabs to remove electrical connector.

  34. Disconnect the alternator electrical connector (1).

    35. Object Number: 1954086 Size: SH
  35. Disconnect the left side fuel injector wiring harness connectors (2).
  36. Remove the CPA lock (4) from the left side ignition coil main connector (3).
  37. Disconnect the left side ignition coil main connector (3).
  38. Reposition and secure the left side fuel injector wiring harness (5) away from the intake manifold (1).

    39. Object Number: 1954047 Size: SH
  39. Disconnect the oil pressure sensor electrical connector (1).
  40. Detach the wiring harness assembly retaining clip (2) from the left side cylinder head (4).
  41. Remove the wiring harness assembly earth to cylinder head retaining bolt (3)

Engine Wiring Harness Assembly Removal LWBRHD

    Important: Steps 1 - 5 refer to the 4L60E 4 speed automatic transmission only.


    Object Number: 1954048 Size: SH
  1. Disconnect the park/neutral position switch electrical connector (1).
  2. Detach the engine wiring loom assembly (3) from the retaining clip (2).
  3. Detach the engine wiring loom assembly (3) from the retaining clip (4).
  4. Disconnect the main transmission electrical connector (5).
  5. Disconnect the vehicle speed sensor electrical connector (6).

    6. Important: Steps 6 - 8 refer to the 6L80E 4 speed automatic transmission only.


    Object Number: 1954055 Size: SH
  6. Disconnect the heated oxygen sensor electrical connector (1).
  7. Detach the engine wiring loom assembly (2) from the retaining clip (3).
  8. Disconnect the main transmission electrical connector (4).

    9. Object Number: 1951065 Size: SH
  9. Remove the starter motor heat shield to starter motor retaining bolts (1).
  10. Remove the heat shield from the vehicle (2).

    11. Object Number: 1994663 Size: SH
  11. Disconnect the starter motor solenoid electrical connector (1).
  12. Remove battery positive cable retaining nut (2) from the starter motor.

    13. Object Number: 1954042 Size: SH
  13. Remove starter motor to bell housing retaining bolts (1).
  14. Remove the starter motor (2).

    15. Object Number: 1954045 Size: SH
  15. Disconnect the crankshaft position (CKP) sensor electrical connector (1).

    16. Object Number: 1954046 Size: SH
  16. Disconnect the oil level/temperature sensor electrical connector (2).
  17. Disconnect the right side knock sensor electrical connector (1).

    18. Object Number: 1954087 Size: SH
  18. Disconnect the right side fuel injector wiring harness connectors (1).
  19. Remove the CPA lock (7) from the right side ignition coil main connector (6).
  20. Disconnect the right side ignition coil main connector (6).
  21. Disconnect the canister purge valve (5) wiring harness connector.
  22. Disconnect the manifold absolute pressure (MAP) sensor wiring harness connector (3).
  23. Reposition and secure the right side fuel injector wiring harness (4) away from the intake manifold (2).

    24. Object Number: 1950915 Size: SH
  24. Remove the vehicle body ground cable to cylinder head retaining nut (1).
  25. Remove the vehicle body ground cable (3) from the cylinder head stud (2).

    26. Object Number: 1950917 Size: SH
  26. Remove the cylinder head stud (3) from the cylinder head (2) and secure the wiring harness ground (1) away from the cylinder head (2).

    27. Object Number: 1951049 Size: SH
  27. Disconnect the A/C electrical connector (1).

    28. Object Number: 1957879 Size: SH
  28. Disconnect the electrical connector from the A/C Refrigerant Pressure Sensor (1).

    29. Object Number: 1954085 Size: SH
  29. Disconnect the electronic throttle body wiring harness connector (1).

    30. Object Number: 1950900 Size: SH

    Important: The locking tang on the power steering reservoir bracket (1) must be released before removing the power steering reservoir (2).

  30. Remove the power steering reservoir (2) from the power steering pump power steering reservoir bracket (1) and position the power steering reservoir (2) aside.

    31. Object Number: 1954088 Size: SH
  31. Disconnect the camshaft position sensor connector (4).
  32. Disconnect the coolant temperature sensor connector (3).
  33. Detach the wiring harness retaining clip (2) from the engine lifting bracket (1).

    34. Object Number: 1954054 Size: SH

    Important: Press the retainer tabs to remove electrical connector.

  34. Disconnect the alternator electrical connector (1).

    35. Object Number: 1954086 Size: SH
  35. Disconnect the left side fuel injector wiring harness connectors (2).
  36. Remove the CPA lock (4) from the left side ignition coil main connector (3).
  37. Disconnect the left side ignition coil main connector (3).
  38. Reposition and secure the left side fuel injector wiring harness (5) away from the intake manifold (1).

    39. Object Number: 1954047 Size: SH
  39. Disconnect the oil pressure sensor electrical connector (1).
  40. Detach the wiring harness assembly retaining clip (2) from the left side cylinder head (4).
  41. Remove the wiring harness assembly earth to cylinder head retaining bolt (3)

Engine Wiring Harness Assembly Removal SWBRHD

    Important: Steps 1 - 5 refer to the 4L60E 4 speed automatic transmission only.


    Object Number: 1954048 Size: SH
  1. Disconnect the park/neutral position switch electrical connector (1).
  2. Detach the engine wiring loom assembly (3) from the retaining clip (2).
  3. Detach the engine wiring loom assembly (3) from the retaining clip (4).
  4. Disconnect the main transmission electrical connector (5).
  5. Disconnect the vehicle speed sensor electrical connector (6).

    6. Important: Steps 6 - 8 refer to the 6L80E 4 speed automatic transmission only.


    Object Number: 1954055 Size: SH
  6. Disconnect the heated oxygen sensor electrical connector (1).
  7. Detach the engine wiring loom assembly (2) from the retaining clip (3).
  8. Disconnect the main transmission electrical connector (4).

    9. Important: Steps 9 and 10 refer to the T56 6 speed manual transmission only.


    Object Number: 1954050 Size: SH
  9. Detach the engine wiring loom assembly (2) from the retaining clip (1).
  10. Disconnect the reverse switch assembly electrical connector (3).

    11. Object Number: 1951065 Size: SH
  11. Remove the starter motor heat shield to starter motor retaining bolts (1).
  12. Remove the heat shield from the vehicle (2).

    13. Object Number: 1994663 Size: SH
  13. Disconnect the starter motor solenoid electrical connector (1).
  14. Remove battery positive cable retaining nut (2) from the starter motor.

    15. Object Number: 1954042 Size: SH
  15. Remove starter motor to bell housing retaining bolts (1).
  16. Remove the starter motor (2).

    17. Object Number: 1954045 Size: SH
  17. Disconnect the crankshaft position (CKP) sensor electrical connector (1).

    18. Object Number: 1954046 Size: SH
  18. Disconnect the oil level/temperature sensor electrical connector (2).
  19. Disconnect the right side knock sensor electrical connector (1).

    20. Object Number: 1954087 Size: SH
  20. Disconnect the right side fuel injector wiring harness connectors (1).
  21. Remove the CPA lock (7) from the right side ignition coil main connector (6).
  22. Disconnect the right side ignition coil main connector (6).
  23. Disconnect the canister purge valve (5) wiring harness connector.
  24. Disconnect the manifold absolute pressure (MAP) sensor wiring harness connector (3).
  25. Reposition and secure the right side fuel injector wiring harness (4) away from the intake manifold (2).

    26. Object Number: 1950915 Size: SH
  26. Remove the vehicle body ground cable to cylinder head retaining nut (1).
  27. Remove the vehicle body ground cable (3) from the cylinder head stud (2).

    28. Object Number: 1950917 Size: SH
  28. Remove the cylinder head stud (3) from the cylinder head (2) and secure the wiring harness ground (1) away from the cylinder head (2).

    29. Object Number: 1951049 Size: SH
  29. Disconnect the A/C electrical connector (1).

    30. Object Number: 1957879 Size: SH
  30. Disconnect the electrical connector from the A/C Refrigerant Pressure Sensor (1).

    31. Object Number: 1954085 Size: SH
  31. Disconnect the electronic throttle body wiring harness connector (1).

    32. Object Number: 1950900 Size: SH

    Important: The locking tang on the power steering reservoir bracket (1) must be released before removing the power steering reservoir (2).

  32. Remove the power steering reservoir (2) from the power steering pump power steering reservoir bracket (1) and position the power steering reservoir (2) aside.

    33. Object Number: 1954088 Size: SH
  33. Disconnect the camshaft position sensor connector (4).
  34. Disconnect the coolant temperature sensor connector (3).
  35. Detach the wiring harness retaining clip (2) from the engine lifting bracket (1).

    36. Object Number: 1954054 Size: SH

    Important: Press the retainer tabs to remove electrical connector.

  36. Disconnect the alternator electrical connector (1).

    37. Object Number: 1954086 Size: SH
  37. Disconnect the left side fuel injector wiring harness connectors (2).
  38. Remove the CPA lock (4) from the left side ignition coil main connector (3).
  39. Disconnect the left side ignition coil main connector (3).
  40. Reposition and secure the left side fuel injector wiring harness (5) away from the intake manifold (1).

    41. Object Number: 1954047 Size: SH
  41. Disconnect the oil pressure sensor electrical connector (1).
  42. Detach the wiring harness assembly retaining clip (2) from the left side cylinder head (4).
  43. Remove the wiring harness assembly earth to cylinder head retaining bolt (3)