4.6L Engine Removal on Cadillac?

The details are for Cadillac CTS and DTS car models.
Its for Cadillac 4.6L Engine removal procedures.
The Engine replacing details provided with complete details and required tool diagrams.

The procedure is as follows:----
4.6L Engine:----

1. Drain the cooling system.
2. Drain the engine oil.
3. Recover the A/C refrigerant.
4. Remove the fuel injector sight shield.
5. Relieve the fuel system pressure.
6. Remove or disconnect the following:
   
   NOTE

   The wheels of the vehicle must be straight ahead and the steering column in the LOCK position before disconnecting the steering column or intermediate shaft from the steering gear. Failure to do so will cause the SIR coil assembly to become uncentered, which may cause damage to the coil assembly.
   
   
   
   
   Booster vacuum hose

   Fuel feed line

   Evaporative emission (EVAP) line

   Front compartment sight shield

   Air cleaner

   Starter cable from the BEC terminal and secure to the top of the engine

   Engine harness electrical connector from the Transaxle Control Module (TCM)

   Secure the TCM and engine harness wiring branches to the engine

   Engine harness electrical connectors from the engine control module (ECM).

   The junction block and bolts

   Engine harness from the BEC

   Right side frame rail ground strap, secure to engine

   Transaxle shift cable from the bracket and position the cable aside

   Radiator inlet and outlet hoses 

   Surge tank inlet hose

   Heater hoses

   Master cylinder, reposition the master cylinder and secure the master cylinder to the engine

   Transaxle oil cooler pipes from the radiator
7. Lock the steering column by installing the J 42640 into the underside of the steering column.
8. Remove the left and right side strut tower bolts.
9. Raise and support the vehicle. 
10. Remove or disconnect the following:
    
    WARNING

    Failure to disconnect the intermediate shaft from the rack and pinion stub shaft can result in damage to the steering gear and/or damage to the intermediate shaft. This damage may cause loss of steering control which could result in personal injury.
    
    
    
    NOTE

    Mark the flywheel to torque converter relationship prior to removal of the bolts.
    
    
    
    
    Rear exhaust manifold pipe

    Front wheels.

    Engine harness grommet from frame rail

    Engine harness clip from ride lever sensor

    Electronic suspension front position sensor, if equipped

    Front brake line brackets

    Rear brake lines from front lines, plug the open brake lines

    A/C compressor discharge and suction hoses at the condenser, secure to the engine and plug port
    
    
    
    
    Steering shaft cover

    Intermediate shaft pinch bolt and shaft

    The heated oxygen sensor (HO2S).

    Transaxle brace bolts and brace

    Torque converter cover
    
    
    
    
    Flywheel to torque converter bolts
11. Position the J 39580 engine cradle under the frame.
12. Lower the vehicle onto the J 39580. 
    
    
    
    Fig. J 39580 Engine support system
13. If the J 39580 is not available. Support the powertrain with four suitable jackstands.
14. Place a 2 inch x 4 inch block of wood between the front of the engine oil pan and the engine frame.
    
    WARNING

    To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.
15. Secure the front hoist pads to the vehicle.
16. Remove the front fascia.
17. Remove the 6 bolts attaching the frame to the body.
18. Ensure clearance is maintained between the engine/transaxle assembly and the following:
    1. The A/C compressor components
    2. The brake pipes
    3. The heater hoses
    4. The radiator hoses
    5. The wheel speed sensor leads
19. Carefully raise the vehicle in order to clear the supported engine/transaxle assembly.
20. Remove secondary Air Injection (AIR) components.
21. Remove the Ignition Control Module (ICM) ground strap from the right cylinder head.
22. Disconnect the following engine harness electrical connectors from the front of the engine:
    1. The fuel injectors 
    2. The Ignition Control Module (ICM)
    3. The Manifold Absolute Pressure (MAP) sensor
    4. The throttle actuator
23. Disconnect the following engine harness electrical connectors:
    1. The starter inline 
    2. The AIR check valve
    3. Power steering sensor
    4. Engine harness electrical connector from the engine valley jumper
    5. Engine harness ground 
    6. Engine Coolant Temperature (ECT) sensor
    7. Vehicle Speed Sensor (VSS)
    8. A/C pressure sensor
    9. Oil pressure sensor
    10. Oil level sensor
    11. The A/C compressor
    12. Alternator
    13. The AIR pump 
    14. The brake modulator
    15. HO2S sensor
24. Remove all clips and retainers as needed.
25. Disconnect the engine harness electrical connector from the transaxle.
26. Remove all remaining engine harness ground bolts.
27. Gather all the branches of the engine harness and remove the engine harness from the engine.
28. Remove or disconnect the following:
    
    
    Power steering outlet hose from the reservoir

    Power steering inlet pipe fitting from the power steering pump

    A/C compressor discharge and suction hoses, plug ports

    Transaxle nuts, bolt and brace
29. Install an engine lift chain to the engine lift brackets and attach an engine lifting device.
30. Remove the rear engine mount to frame nut.
31. Remove the rear engine mount bracket bolts and stud.
32. Remove the rear engine mount bracket.
33. Remove the front engine mount to frame nut.
34. Remove the rear transaxle bolt.
35. Remove the upper transaxle bolts.
36. Separate the engine from the transaxle.
37. Raise the engine from the supported frame and transaxle assembly.
38. Remove the front engine mount bracket bolts/nuts.
39. Remove the front engine mount bracket.
40. Install the engine assembly to a suitable engine stand.

To install:

1. Install the front engine mount bracket.
2. Install the front engine mount bracket bolts/nuts and tighten to 37 ft. lbs. (50 Nm).
3. Install an engine lift chain to the engine lift brackets and attach an engine lifting device.
4. Remove the engine assembly from the engine stand.
5. Carefully position and install the engine to the supported frame and transaxle, aligning the engine dowel pins to the transaxle.
6. Install or connect the following:
   
   
   Upper transaxle bolts, Tighten to 55 ft. lbs. (75 Nm).

   Rear transaxle bolt. Tighten to 55 ft. lbs. (75 Nm).

   Front engine mount to frame nut. Tighten to 59 ft. lbs. (80 Nm).

   Rear engine mount bracket bolts and stud. Tighten the bolts/stud to 54 ft. lbs. (73 Nm).

   Rear engine mount to frame nut. Tighten the nut to 59 ft. lbs. (80 Nm).

   Transaxle brace

   Transaxle brace bolt. Tighten the bolt to 37 ft. lbs. (50 Nm).

   Front engine mount bracket nut with the transaxle brace behind it. Tighten the nut to 37 ft. lbs. (50 Nm).

   Transaxle brace to the engine and transaxle

   Transaxle brace bolts to the engine. Tighten the bolts to 37 ft. lbs. (50 Nm).

   Transaxle brace bolt/stud to the transaxle. Tighten the bolt/stud to 37 ft. lbs. (50 Nm).

   Transaxle brace to the lift bracket studs

   Transaxle brace bolt. Tighten the bolt/stud to 37 ft. lbs. (50 Nm). Tighten the nut to 37 ft. lbs. (50 Nm).

   A/C suction and discharge hoses. Remove plugs. Tighten to mounting nuts to 12 ft. lbs. (16 Nm).

   Power steering inlet pipe fitting to the power steering pump. Tighten the fitting to 20 ft. lbs. (27 Nm).

   Power steering inlet pipe bracket

   Power steering inlet pipe nut. Tighten the nut to 80 inch lbs. (9 Nm).

   Power steering outlet hose to the reservoir.

   Engine harness to the engine.

   Engine harness grounds. Tighten the bolts to 18 ft. lbs. (25 Nm). 

   Engine harness electrical connector to the transaxle
7. Connect the engine harness electrical connectors to the following:
   1. HO2S
   2. The AIR pump
   3. The brake modulator 
   4. The oil pressure sensor
   5. The oil level sensor
   6. The A/C compressor
   7. The alternator
   8. A/C pressure sensor.
   9. Vehicle Speed Sensor (VSS)
   10. Engine Coolant Temperature (ECT) sensor
   11. The power steering sensor
   12. Engine valley jumper harness electrical connector.
8. Connect the following engine harness electrical connectors to the top of the engine:
   1. The starter inline 
   2. The AIR check valve
9. Connect the following engine harness electrical connectors to the front of the engine:
   1. The fuel injectors 
   2. The ICM
   3. The MAP sensor 
   4. The throttle actuator
10. Connect the following engine harness electrical connectors to the rear of the engine:
    1. The EVAP solenoid 
    2. The EGR valve 
    3. The fuel injectors
    4. The ICM 
11. Install all clips and retainers as needed.
12. Install or connect the following:
    
    
    ICM ground strap bolt to the right cylinder head. Tighten the bolt to 18 ft. lbs. (25 Nm).

    Secondary air injection components.

    AIR pipe outlet pipe nut. Tighten the nut to 80 inch lbs. (90 Nm).

    Heater outlet pipe to the engine. Tighten the nut to 18 ft. lbs. (25 Nm).

    Heater outlet pipe at the water pump housing
13. Position the engine/transaxle assembly under the vehicle.
14. Ensure clearance is maintained between the engine/transaxle assembly and the following:
    1. The A/C compressor components
    2. The brake pipes
    3. The heater hoses
    4. The radiator hoses
    5. The wheel speed sensor leads
    6. The wiring harnesses
15. Carefully lower the vehicle over the engine/transaxle assembly, aligning the struts to the strut towers.
16. Install the 6 bolts attaching the frame to the body. Tighten the bolts to 141 ft. lbs. (191 Nm).
17. Install the front fascia.
18. Raise the vehicle off of the J 39580 or the jack stands.
19. Remove the J 39580 or jack stands from under the frame.
20. Align the flywheel with the marks made during the removal.
21. Install the flywheel to torque converter bolts. Tighten the bolts to 44 ft. lbs. (60 Nm).
22. Install or connect the following:
    
    WARNING

    When installing the intermediate shaft make sure that the shaft is seated prior to pinch bolt installation. If the pinch bolt is inserted into the coupling before shaft installation, the two mating shafts may disengage. Disengagement of the two mating shafts will cause loss of steering control which could result in personal injury.
    
    
    
    
    Torque converter cover. Tighten the bolt to 106 inch lbs. (12 Nm).

    Transaxle brace. Tighten the bolts to 35 ft. lbs. (47 Nm).

    HO2S

    Oxygen sensor wiring harness heat shield
    
    
    
    
    Intermediate shaft to the steering gear. Tighten the pinch bolt to 33 ft. lbs. (45 Nm).

    Intermediate steering shaft cover

    A/C compressor suction and discharge hoses to the condenser. Remove plugs. Install new washers and tighten the nut to 12 ft. lbs. (16 Nm).

    Rear brake lines to the front brake lines. Remove plugs. Tighten the fittings to 15 ft. lbs. (20 Nm).

    Left and right brake pipe bracket to the body frame rail. Tighten the nut to 80 inch lbs. (9 Nm).

    Front air deflector

    Electronic suspension front position sensor, if equipped.

    Engine harness grommet 

    Front wheels

    Rear exhaust manifold pipe
23. Lower the vehicle.
24. Remove the J 42640 from the steering column.
25. Install or connect the following:
    
    
    Transaxle oil cooler pipes to the radiator

    Upper transaxle oil cooler pipe bolt. Tighten the bolt to 53 inch. lbs. (6 Nm).

    Master cylinder. Tighten the nuts to 22 ft. lbs. (30 Nm).

    Heater inlet and outlet hoses to the heater pipes

    Surge tank inlet hose

    Radiator inlet and outlet hoses

    Transaxle shift cable

    Engine ground strap at frame rail. Tighten the bolt to 18 ft. lbs. (25 Nm).

    Engine harness to the BEC.

    The junction block. Tighten the bolts to 58 inch lbs. (6.5 Nm).

    Engine harness electrical connectors to the ECM

    Engine harness electrical connector to the body harness electrical connector

    Engine harness electrical connector to the TCM

    Starter cable to the BEC terminal. Tighten the nut to 11 ft. lbs. (15 Nm)

    Junction block cover

    The air cleaner

    Front compartment sight shield

    Fuel feed hose

    EVAP line

    Brake booster vacuum hose
26. Connect the negative battery cable.
27. Fill the engine with oil.
28. Fill the cooling system.
29. Bleed the brake system.
30. Recharge the A/C refrigerant system.
31. Bleed the power steering system.
32. Check the wheel alignment.
33. Pre-lube the engine.
34. Install the fuel injector sight shield.
35. With the ignition OFF or disconnected, crank the engine several times. Listen for any unusual noises or evidence that any parts are binding.
36. Start the engine and listen for abnormal conditions.
37. Check the vehicle oil pressure gauge or light and confirm that the engine has acceptable oil pressure.
38. Run the engine at approximately 1000 RPM until the engine reaches normal operating temperature.
39. While the engine continues to idle raise and support the vehicle.
40. Inspect for oil, coolant and exhaust leaks while the engine is idling.
41. Lower the vehicle.
42. Perform the Crankshaft Position (CKP) system variation learn procedure.
43. Perform a final inspection for the proper engine oil and coolant levels.
44. Road test the vehicle.

These details will help.

Thanks.           

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