Front Subframe: Service and Repair
Trustmark Authoring Standards (TAS) Repair Procedures
NOTE: TAS style procedures can be identified by steps that have no accompanying step text and the magenta color of the electrical connectors and fasteners such as nuts, bolts, clamps or clips.
A TAS removal and installation procedure uses a sequence of color illustrations to indicate the order to be followed when removing/disassembling or installing/assembling a component.
Specification data
Specification procedures will only contain technical data that is not already part of a repair procedure.
Sequence of tasks
If components must be removed or installed in a specific sequence, the sequence will be identified numerically in a graphic and the corresponding text will be numbered accordingly.
Special Tools, Equipment, Materials and Torque Figures
Special tools will be shown with the tool numbers in the illustration. The special tool numbers, general equipment, materials and torque figures used for the procedure step will be shown in the text column.
TAS Graphics
Colors used in the graphic are as follows:
Blue - Component to be removed/installed or disassembled/assembled.
Green and Brown - Additional components that need to be removed/installed or disassembled/assembled prior to the target component.
Yellow - Component that is touched or affected in a way but remains in the vehicle. It may be detached, attached, moved, modified, checked, adjusted etc.
Magenta - Electrical connectors and fasteners such as nuts, bolts, clamps and clips.
Pale Blue - Special tool(s) and general equipment.
One illustration may have multiple steps assigned to it.
Numbered pointers are used to indicate the number of electrical connectors and fasteners such as nuts, bolts, clamps and clips.
Items in the illustration can be transparent or use cutouts to show hidden details.
Uni-Body, Subframe and Mounting System - Front Subframe V6 S/C 3.0L Petrol /V8 S/C 5.0L Petrol
Removal and Installation
Special Tool(s)
303-021
Engine support bracket
303-1435
Engine Lifting Brackets Rear
502-005
Alignment Bolts, Subframe
General Equipment
Powertrain Jack
Removal
NOTE: Some variation in the illustrations may occur, but the essential information is always correct.
1. Refer to: Battery Disconnect and Connect.
2. WARNING: Make sure to support the vehicle with axle stands.
Raise and support the vehicle.
3. Remove both the front wheels and tires.
Refer to: Wheel and Tire.
4. Refer to: Radiator Splash Shield.
5. Refer to: Air Deflector.
6. Refer to: Engine Cover - 5.0L.
7. Secure the radiator assembly.
8. WARNING: Make sure to support the vehicle with axle stands.
Raise and support the vehicle.
9.
10. NOTE: LH illustration shown, RH is similar.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20. Lower the vehicle.
21.
22. CAUTION: Make sure to protect the paintwork.
Support the engine with the lifting equipment.
Special Tool(s): 303-1435, 303-021
23. WARNING: Make sure to support the vehicle with axle stands.
Raise and support the vehicle.
24.
25.
26. NOTE: Note the fitted position of each bolt, mark the washers and subframe before removal to aid assembly.
27. NOTE: Note the fitted position of each bolt, mark the washers and subframe before removal to aid assembly.
28. General Equipment: Powertrain Jack
29. NOTE: This step requires the aid of another technician.
30. NOTE:
- Do not disassemble further if the component is removed for access only.
- LH illustration shown, RH is similar.
31.
Installation
1. Torque: 55 Nm
2. NOTE: LH illustration shown, RH is similar.
Torque: 20 Nm
3. General Equipment: Powertrain Jack
4.
5. Install the special tool to the front subframe.
Special Tool(s): 502-005
6. Install the special tool to the front subframe.
Special Tool(s): 502-005
7. Torque:
Stage 1: 80 Nm
Stage 2: 240°
8. Remove the special tool.
Special Tool(s): 502-005
9. Remove the special tool.
Special Tool(s): 502-005
10. Torque:
Stage 1: 100 Nm
Stage 2: 270°
11. Lower the vehicle.
12. CAUTION: Make sure to protect the paintwork.
Remove the special tool supporting the engine.
Special Tool(s): 303-1435, 303-021
13. Torque:
M6 9 Nm
M10 40 Nm
14. WARNING: Make sure to support the vehicle with axle stands.
Raise and support the vehicle.
15. CAUTION: Make sure each bolt aligns with the removal markings.
Torque: 175 Nm
16. CAUTION: Make sure each bolt aligns with the removal markings.
Torque: 175 Nm
17. Torque: 43 Nm
18. Torque: 43 Nm
19. Torque: 5 Nm
20.
21.
22.
23.
24.
25.
26. Torque: 100 Nm
27. Torque: 45 Nm
28. NOTE: LH illustration shown, RH is similar.
29.
30. Release the radiator assembly.
31. Refer to: Engine Cover - 5.0L.
32. Refer to: Air Deflector.
33. Refer to: Radiator Splash Shield.
34. Install both the front wheels and tires.
Refer to: Wheel and Tire.
35. Refer to: Battery Disconnect and Connect.
36. Refer to: Camber and Caster Adjustment.