Engine Replacement

Engine Replacement

Special Tools
* J 38185 Hose Clamp Pliers
* J 39580 Universal Engine Support Table

Removal Procedure




1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (L26) (Service and Repair)Battery Negative Cable Disconnection and Connection (LS4) (Service and Repair).
2. Remove the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement (Service and Repair).
3. Evacuate the air conditioning (A/C) system. Refer to Refrigerant Recovery and Recharging (Refrigerant Recovery and Recharging).
4. Remove the front tires and wheels. Refer to Tire and Wheel Removal and Installation (Service and Repair).
5. Drain the cooling system. Refer to Cooling System Draining and Filling (L26 Static Fill) (Service and Repair)Cooling System Draining and Filling (LS4 Static Fill) (Service and Repair)Cooling System Draining and Filling (L26 GE 47716 Fill) (Service and Repair)Cooling System Draining and Filling (LS4 GE 47716 Fill) (Service and Repair).
6. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement (Service and Repair).
7. Lower the vehicle.
8. Using the J 38185 reposition the inlet hose clamp at the radiator.
9. Remove the inlet hose from the radiator.




10. Using the J 38185 reposition the outlet hose clamp at the radiator.
11. Disengage the outlet hose clips from the fan shroud.
12. Remove the outlet hose from the radiator.




13. Remove the A/C compressor hose nut at the A/C receiver/dehydrator tube.
14. Remove the A/C compressor hose.




15. Remove the A/C compressor hose nut at the A/C condenser.
16. Remove the A/C compressor hose.




17. Remove the brake booster vacuum hose from the brake booster (3).
18. Remove the brake booster vacuum hose (1) from the intake manifold (2).




19. Disconnect the engine harness electrical connectors (1, 2) from the instrument panel (I/P) harness electrical connectors.
20. Disconnect the brake fluid level switch electrical connector (3) from the master cylinder.




21. Remove brake fluid from the master cylinder.
22. Disconnect the from brake pipe fittings (1, 2) from the master cylinder.




23. Disconnect the brake pipe fittings (1, 2) from the antilock brake (ABS) module.




24. Remove the master cylinder nuts.
25. Position the master cylinder to the engine. Hold the master cylinder in place using mechanic's wire.




26. Relieve the fuel system pressure. Refer to Fuel Pressure Relief (Without CH 48027) (Fuel Pressure Relief (Without CH 48027))Fuel Pressure Relief (With CH 48027) (Fuel Pressure Relief (With CH 48027)).
27. Disconnect the fuel feed line (1) from the fuel rail. Refer to Metal Collar Quick Connect Fitting Service (Metal Collar Quick Connect Fitting Service).
28. Disconnect the evaporative emission (EVAP) line (2) from the purge solenoid. Refer to Plastic Collar Quick Connect Fitting Service (Plastic Collar Quick Connect Fitting Service).




29. Remove the right front fender diagonal brace. Refer to Front Fender Upper Diagonal Brace Replacement (Service and Repair).
30. Remove the underhood electrical center cover (1).
31. Loosen the 4 integral bolts (2) attaching the fuse block. Reposition the fuse block.




32. Loosen the engine harness connector bolt (1). Remove the engine harness connector from the bracket.




33. Disconnect the camshaft position sensor lead.




34. Disconnect the engine harness electrical connector from the ABS module.




35. Disconnect the engine harness electrical connector from the electronic brake control module (EBCM).




36. Remove the air cleaner assembly. Refer to Air Cleaner Element Replacement (Service and Repair).
37. Disconnect the following electrical connectors:

* Transmission control module (TCM) (1)
* Engine control module (ECM) (2)
* A/C pressure sensor (3)




38. Disconnect the engine harness electrical connector (1) from the crankshaft position (CKP) sensor harness.
39. Disconnect the engine harness electrical connector (2) from the power steering gear harness.
40. Remove the clip attaching the power steering gear harness to the bracket.




41. Remove the shift cable clip.
42. Disconnect the shift cable from the transaxle selector lever stud.
43. Remove the shift cable from the bracket.




44. Remove the vehicle speed sensor (VSS) shield nut (1) and bolt (3). Remove the shield (2).




45. Disconnect the engine harness electrical connector from the VSS.
46. Set all branches of the engine wiring harness on top of the engine.




47. Reposition the intermediate shaft lower boot.
48. Remove the intermediate shaft to steering gear bolt.
49. Separate the intermediate shaft from the steering gear.
50. Disconnect both front wheel speed sensors. Refer to Front Wheel Bearing and Hub Replacement (Front Suspension).
51. Unclip the ABS wire harness from the lower control arm.




52. Using the J 38185 reposition the heater inlet and outlet hose clamps.
53. Remove the heater inlet (2) and outlet (1) hoses from the heater inlet/outlet pipe.
54. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
55. Disconnect the stabilizer links from the stabilizer shaft.
56. Disconnect the ball joints from the steering knuckles. Refer to Lower Control Arm Ball Joint Replacement (Service and Repair).
57. Disconnect the power steering pressure hose from the steering gear.
58. Disconnect the power steering pressure line clips from the frame.
59. Disconnect the outer tie rod ends from the steering knuckles. Refer to Steering Linkage Outer Tie Rod Replacement (Steering Linkage Outer Tie Rod Replacement).




60. Loosen the power steering hose clamp at the inlet pipe.
61. Remove the power steering hose (2) from the inlet pipe.
62. Remove the left and right wheel drive shafts from the transaxle. Refer to Wheel Drive Shaft Replacement (Service and Repair).
63. Support the wheel drive shafts using mechanic's wire.




64. Remove the transaxle oil cooler line bracket bolt/stud.
65. Disconnect the transaxle oil cooler lines from the transaxle. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection (Service and Repair).




66. Remove the positive battery cable nut (3) from the starter.
67. Remove the cable terminal (2) from the starter.
68. Remove the battery cable ground nut (1).
69. Remove the cable ground terminal (6) from the stud.




70. Remove the battery cable retainers from the engine frame.
71. Disconnect the exhaust system. Refer to Catalytic Converter Replacement (V6) (Service and Repair)Catalytic Converter Replacement (LS4) (Service and Repair).
72. Disconnect the O2 sensor harness pigtail.




73. Remove the transaxle converter cover bolt/stud.
74. Remove the converter cover.




75. Remove the flywheel bolts.
76. Remove the front air deflectors. Refer to Radiator Air Lower Baffle and Deflector Replacement (Service and Repair).




77. Raise the vehicle enough to place J 39580 under the engine, frame, and front suspension.
78. Support the rear of the vehicle with suitable jackstand.
79. Strap the front of the vehicle to the hoist.
80. Raise the J 39580 , or lower the vehicle to preload the weight of the engine, frame, and front suspension.
81. Remove the radiator to frame brackets.




82. Remove the engine frame front bolts.




83. Remove the engine frame rear bolts.
84. With the aid of an assistant, lower the J 39580 and/or raise the vehicle to remove the engine and the frame from the vehicle.
85. Ensure that all hoses, wires, and pipes clear the vehicle during the removal process.
86. Use a suitable engine lift to support the engine.




87. Remove the front engine mount to frame nuts.




88. Remove the rear engine mount to frame nuts.




89. Remove the transaxle to engine bolts (1) and stud (2).
90. Separate the engine from the transaxle.
91. Using a suitable engine lift, remove the engine from the frame.
92. Install the engine onto a suitable engine stand.

Installation Procedure




1. Using a suitable engine lift, remove the engine from the engine stand.
2. Position and install the engine to the frame and the transaxle.

Caution: Refer to Fastener Caution (Fastener Caution).

3. Install the transaxle to engine bolts (1) and stud (2).

Tighten the bolts/stud to 75 Nm (55 lb ft).




4. Install the rear engine mount to frame nuts.

Tighten the nuts to 50 Nm (37 lb ft).




5. Install the front engine mount to frame nuts.

Tighten the nuts to 50 Nm (37 lb ft).




6. Ensure that all hoses, wires, and pipes clear the vehicle during the installation process.
7. With the aid of an assistant, raise the J 39580 and/or lower the vehicle to install the engine and frame to the vehicle.
8. Install the engine frame rear bolts.

Tighten the bolts to 160 Nm (118 lb ft).




9. Install the engine frame front bolts.

Tighten the bolts to 145 Nm (107 lb ft).




10. Install radiator to front frame brackets.
11. Lower the J 39580 , or raise the vehicle to preload the weight of the engine, frame, and front suspension.
12. Remove the support from under the rear of the vehicle.
13. Raise the vehicle enough to remove the J 39580 from under the engine, frame, and front suspension.




14. Connect the exhaust system and connect the O2 sensor harness pigtail. Refer to Catalytic Converter Replacement (V6) (Service and Repair)Catalytic Converter Replacement (LS4) (Service and Repair).
15. Install the flywheel bolts.

Tighten the bolts to 63 Nm (47 lb ft).




16. Install the converter cover.
17. Install the transaxle converter cover bolt/stud.

Tighten the bolt/stud to 10 Nm (89 lb in).

18. Install the left and right wheel drive shafts into the transaxle. Refer to Wheel Drive Shaft Replacement (Service and Repair).




19. Install the battery cable retainers to the engine frame.
20. Install the front air deflector. Refer to Radiator Air Lower Baffle and Deflector Replacement (Service and Repair).




21. Install the cable ground terminal (6) to the stud.
22. Install the battery cable ground nut (1).

Tighten the nut to 30 Nm (22 lb ft).

23. Install the cable terminal (2) to the starter.
24. Install the positive battery cable nut (3) to the starter.

Tighten the nut to 10 Nm (89 lb in).




25. Connect the transaxle oil cooler lines to the transaxle. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection (Service and Repair).
26. Install the transaxle oil cooler line bracket bolt/stud.

Tighten the bolt/stud to 25 Nm (18 lb ft).




27. Install the power steering hose (2) to the inlet pipe.
28. Tighten the power steering hose clamp at the inlet pipe.

Tighten the clamp to 6 Nm (53 lb in).

29. Connect the power steering pipe to the steering gear. Refer to Power Steering Pressure Pipe/Hose Replacement (L26) (Power Steering Pressure Pipe/Hose Replacement)Power Steering Pressure Pipe/Hose Replacement (LS4) (Power Steering Pressure Pipe/Hose Replacement).
30. Connect the power steering pipe to the frame clips.
31. Lower the vehicle.




32. Position and install the ball joint nuts. Refer to Lower Control Arm Ball Joint Replacement (Service and Repair).
33. Install the sway links to the stabilizer shaft. Refer to Stabilizer Shaft Link Replacement (Front Suspension).
34. Install the tie rod ends to the steering knuckles. Refer to Steering Linkage Outer Tie Rod Replacement (Steering Linkage Outer Tie Rod Replacement).
35. Connect the wheel speed sensor electrical connectors.
36. Connect the wheel speed sensor wiring harness to the lower control arm.




37. Install the heater inlet (2) and outlet (1) hoses to the heater inlet/outlet pipe.
38. Using the J 38185 position the heater inlet and outlet hose clamps.




39. Install the intermediate shaft to the steering gear.
40. Install the intermediate shaft to steering gear bolt.

Tighten the bolt to 48 Nm (35 lb ft).

41. Position the intermediate shaft lower boot.




42. Route all branches of the engine wiring harness to their correct locations.
43. Connect the engine harness electrical connector to the VSS.




44. Install the VSS shield (2). Install the VSS shield nut (1) and bolt (3).

Tighten the bolt/nut to 25 Nm (18 lb ft).




45. Install the shift cable to the bracket.
46. Connect the shift cable to the transaxle selector lever stud.
47. Install the shift cable clip.




48. Install the clip attaching the power steering gear harness to the bracket.
49. Connect the engine harness electrical connector (1) to the CKP sensor harness.
50. Connect the engine harness electrical connector (2) to the power steering gear harness.




51. Connect the camshaft position sensor lead to the sensor.




52. Connect the following electrical connectors:

* TCM (1)
* ECM (2)
* A/C pressure sensor (3)

53. Install the air cleaner assembly. Refer to Air Cleaner Element Replacement (Service and Repair).




54. Connect the engine harness electrical connector to the EBCM.




55. Connect the engine harness electrical connector to the ABS module.




56. Install the engine harness connector to the bracket. Tighten the engine harness connector bolt (1).

Tighten the bolt to 10 Nm (89 lb in).




57. Position the fuse block. Tighten the 4 integral bolts (2) attaching the fuse block.

Tighten the bolts to 10 Nm (89 lb in).

58. Install the electrical center cover (1).




59. Connect the fuel feed line (1) to the fuel rail. Refer to Metal Collar Quick Connect Fitting Service (Metal Collar Quick Connect Fitting Service).
60. Connect the EVAP line (2) to the purge solenoid. Refer to Plastic Collar Quick Connect Fitting Service (Plastic Collar Quick Connect Fitting Service).




61. Remove the mechanic's wire holding the master cylinder. Position the master cylinder to the brake booster.
62. Install the master cylinder nuts.

Tighten the nuts to 33 Nm (24 lb ft).




63. Connect the brake pipe fittings (1, 2) to the ABS module.

Tighten the fittings to 15 Nm (11 lb ft).




64. Connect the from brake pipe fittings (1, 2) to the master cylinder.

Tighten the fittings to 30 Nm (22 lb ft).




65. Connect the brake fluid level switch electrical connector (3) to the master cylinder.
66. Connect the engine harness electrical connectors (1, 2) to the I/P harness electrical connectors.




67. Install the brake booster vacuum hose (1) to the intake manifold (2).
68. Install the brake booster vacuum hose to the brake booster (3).




69. Install the A/C compressor hose.
70. Install the A/C compressor hose nut at the A/C condenser.

Tighten the nut to 16 Nm (12 lb ft).




71. Install the A/C compressor hose.
72. Install the A/C compressor hose nut at the A/C receiver/dehydrator tube.

Tighten the nut to 16 Nm (12 lb ft).




73. Install the outlet hose to the radiator.
74. Connect the outlet hose clips to the fan shroud.
75. Using the J 38185 position the outlet hose clamp at the radiator.




76. Install the inlet hose to the radiator.
77. Using the J 38185 position the inlet hose clamp at the radiator.
78. Install the front tires and wheels. Refer to Tire and Wheel Removal and Installation (Service and Repair).
79. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (L26) (Service and Repair)Battery Negative Cable Disconnection and Connection (LS4) (Service and Repair).
80. Install the right fender diagonal brace. Refer to Front Fender Upper Diagonal Brace Replacement (Service and Repair).
81. Refill the engine with oil.
82. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging (Refrigerant Recovery and Recharging).
83. Refill the cooling system. Refer to Cooling System Draining and Filling (L26 Static Fill) (Service and Repair)Cooling System Draining and Filling (LS4 Static Fill) (Service and Repair)Cooling System Draining and Filling (L26 GE 47716 Fill) (Service and Repair)Cooling System Draining and Filling (LS4 GE 47716 Fill) (Service and Repair).
84. Bleed the brake system. Refer to Hydraulic Brake System Bleeding (Pressure) (Service and Repair)Hydraulic Brake System Bleeding (Manual) (Service and Repair).
85. Check the transaxle fluid level, add fluid if necessary. Refer to Transmission Fluid Check (Testing and Inspection).
86. Install the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement (Service and Repair).
87. Run the engine and inspect for leaks.