Removal Procedure

Engine Replacement

Tools Required
* 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 (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 (LS4 GE47716 Fill) (Service and Repair)Cooling System Draining and Filling (LS4 Static 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 (With CH 48027) (Fuel Pressure Relief (With CH 48027))Fuel Pressure Relief (Without CH 48027) (Fuel Pressure Relief (Without 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 Rack and Pinion Outer Tie Rod End Replacement (Service and Repair).




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 (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.