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Frame and Underbody Cadillac CTS II

Frames, Subframes & Crossmembers 14 illustrations ~2957 words

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Brake Line Bracket to Frame Nut10 N.m89 lb in
Brake Module to Bracket Nut10 N.m89 lb in
Brake Pipe Fittings15 N.m11 lb ft
Engine Mount Nuts to Frame50 N.m37 lb ft
Front Frame Anchor Bolts to BodyFront Bolts 160 N.m Rear Bolts 240 N.mFront Bolts 118 lb ft Rear Bolts 177 lb ft
Front Lower Ball Joint Nut (Front and Rear)
First Pass40 N.m30 lb ft
Second PassPlus 90 degrees
Front Lower Control Arm Front to Frame Nut50 N.m plus 120 degrees turn37 lb ft plus 120 degrees turn
Front Lower Control Arm Rear to Frame50 N.m plus 120 degrees turn37 lb ft plus 120 degrees turn
Front Outer Tie Rod to Knuckle Nut
First Pass30 N.m22 lb ft
Second PassPlus 120 degrees turn
Front Stabilizer Shaft Bracket Bolts17 N.m13 lb ft
Front Stabilizer Shaft Link Nut49 N.m36 lb ft
Power Steering Gear to Frame Mounting Bolts50 N.m plus 120 degrees turn37 lb ft plus 120 degrees turn
Rear Adjuster Link to Frame Nuts115 N.m85 lb ft
Rear Adjuster Link to Knuckle Bolts140 N.m103 lb ft
Rear Frame Insulator Anchor Bolts to Body100 N.m plus 110 degrees turn74 lb ft plus 110 degrees turn
Rear Lower Control Arm to Knuckle Bolts40 N.m plus 120 degrees turn30 lb ft plus 120 degrees turn
Rear Lower Control Arm to Frame Nuts115 N.m85 lb ft
Rear Shock Lower Nut80 N.m plus 120 degrees turn59 lb ft plus 120 degrees turn
Rear Shock Mount to Body Bolts58 N.m43 lb ft
Rear Stabilizer Shaft Clamp Bolt20 N.m16 lb ft
Rear Stabilizer Shaft Link Nuts49 N.m36 lb ft
Rear Trailing Arm to Frame Bolts100 N.m74 lb ft
Rear Trailing Arm to Knuckle Bolts40 N.m plus 120 degrees turn30 lb ft plus 120 degrees turn
Rear Upper Control Arm Bushing to Control Arm Bolt160 N.m118 lb ft
Rear Upper Control Arm Bushing Bracket to Frame Bolts50 N.m plus 120 degrees turn37 lb ft plus 120 degrees turn
Transmission Mount Lower Nuts60 N.m44 lb ft
Transmission Support to Body Bolts58 N.m43 lb ft
Under Body Brace58 N.m43 lb ft
Upper Control Arm to Knuckle Bolt60 N.m plus 120 degrees turn44 lb ft plus 120 degrees turn
Washer Solvent Bottle Bracket Nut10 N.m89 lb in

Scheme 1

Scheme 1: Front Compartment Lower Noise Shield Replacement (All Wheel Drive)
Scheme 1: Front Compartment Lower Noise Shield Replacement (All Wheel Drive)
CalloutComponent Name
Preliminary Procedure: Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
1Front Compartment Lower Noise Shield Bolt (Qty: 4) CAUTION: Refer to Fastener Caution . Tighten: 5 N.m (44 lb in)
2Front Compartment Lower Noise Shield
3Front Compartment Lower Noise Shield Nut (Qty: 4)
CAUTION
Refer to Fastener Caution .

Scheme 2

Scheme 2: Front Compartment Lower Noise Shield Replacement (Rear Wheel Drive)
Scheme 2: Front Compartment Lower Noise Shield Replacement (Rear Wheel Drive)
CalloutComponent Name
Preliminary Procedure: Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
1Front Compartment Lower Noise Shield Retainer (Qty: 3)
2Front Compartment Lower Noise Shield Bolt (Qty: 4) CAUTION: Refer to Fastener Caution . Tighten: 5 N.m (44 lb in)
3Front Compartment Lower Noise Shield
4Front Compartment Lower Noise Shield Nut (Qty: 4)
CAUTION
Refer to Fastener Caution .

Special Tools

J 39580 Engine Support Stand. See Special Tools .

Removal Procedure

  1. Install the engine support fixture. Refer to «Engine Support Fixture»(/cadillac/cts/ii-2007-2014/remont/mechanical/#engine-mechanical-30l-or-36l-repair-instructions-on-vehicle-1-of-2__engine-support-fixture) .
  2. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#general-information) .
  3. Remove the front wheels. Refer to «Tire and Wheel Removal and Installation»(/cadillac/cts/ii-2007-2014/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .
  4. Remove the front compartment lower noise shield. Refer to «Front Compartment Lower Noise Shield Replacement (All Wheel Drive)»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  5. Remove the electrical harness retainers (1) securing the engine harness (2) to the frame.
  6. Remove the wheel speed sensor wire harness from the frame.
  7. Remove the brake pipes from the frame.
  8. Remove the brake pressure modulator valve from the bracket assembly. Refer to «Brake Pressure Modulator Valve Replacement (CTS)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) or «Brake Pressure Modulator Valve Replacement (CTS-V)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) .
  9. Using mechanics wire, support the radiator and AC condenser assembly to the vehicle body.
  10. Loosen the stabilizer shaft mounting bolts.
  11. Remove the antilock brake system wire harness from the sway bar links.
  12. Remove the lower stabilizer shaft link from the lower control arm. Refer to «Stabilizer Shaft Link Replacement (AWD)»(/cadillac/cts/ii-2007-2014/remont/suspension-front/#front-suspension-system) .
  13. Remove the power steering gear mounting bolts. Refer to «Steering Gear Replacement (Left Hand Drive With All Wheel Drive)»(/cadillac/cts/ii-2007-2014/remont/electronic-steering/#power-steering-system) or «Steering Gear Replacement (Right Hand Drive)»(/cadillac/cts/ii-2007-2014/remont/electronic-steering/#power-steering-system) .
  14. Using mechanics wire secure the power steering gear to the engine.
  15. Remove the lower control arms. Refer to «Lower Control Arm Replacement (AWD)»(/cadillac/cts/ii-2007-2014/remont/suspension-front/#front-suspension-system) .
  16. Remove the power steering and brake line retainers from the frame.
  17. Remove the engine mounts lower retaining nuts.
  18. Install J 39580 under the frame. See «Special Tools»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  19. Lower the vehicle to the frame support table.
  20. Remove the frame mounting bolts (1, 2).
  21. With the aid of an assistant, carefully raise the body from the frame.
  22. Ensure when raising the body the following items are clear from the frame. Brake pipes Steering knuckles Electrical wiring harnesses
  23. Remove the stabilizer shaft. Refer to «Stabilizer Shaft Replacement (AWD)»(/cadillac/cts/ii-2007-2014/remont/suspension-front/#front-suspension-system) .
  24. With the aid of an assistant, remove the frame from the support fixture.

Installation Procedure

  1. Install the stabilizer shaft to the frame. Refer to «Stabilizer Shaft Replacement (AWD)»(/cadillac/cts/ii-2007-2014/remont/suspension-front/#front-suspension-system) . Do not tighten the stabilizer shaft mounting bolts at this time.
  2. With the aid of an assistant, position and secure the new frame assembly to the support fixture.
  3. With the aid of an assistant, carefully lower the body to the frame.
  4. Ensure the following components are clear from the frame. The electrical harness The steering knuckle assembly The brake pipes
  5. Install the frame mountings bolts (2) and tighten to 191 N.m (141 lb ft).
  6. Install the frame to body bolts (1) and tighten to 250 N.m (180 lb ft)
  7. Raise the vehicle.
  8. Install the engine mount lower retaining nuts (2) and tighten to 50 N.m (37 lb ft).
  9. Remove the J 39580 from under the vehicle. See «Special Tools»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  10. Install the power steering and brake line retainers to the frame.
  11. Remove the mechanics wire supporting the power steering gear.
  12. Install the power steering gear mounting bolts. Refer to «Steering Gear Replacement (Left Hand Drive With All Wheel Drive)»(/cadillac/cts/ii-2007-2014/remont/electronic-steering/#power-steering-system) or «Steering Gear Replacement (Right Hand Drive)»(/cadillac/cts/ii-2007-2014/remont/electronic-steering/#power-steering-system) .
  13. Install the lower control arms. Refer to «Lower Control Arm Replacement (AWD)»(/cadillac/cts/ii-2007-2014/remont/suspension-front/#front-suspension-system) .
  14. Tighten the stabilizer shaft bolts to 110 N.m (81 lb ft).
  15. Install the stabilizer shaft link to the lower control arms. Refer to «Stabilizer Shaft Link Replacement (AWD)»(/cadillac/cts/ii-2007-2014/remont/suspension-front/#front-suspension-system) .
  16. Install the brake pressure modulator valve to the bracket. Refer to «Brake Pressure Modulator Valve Replacement (CTS)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) or «Brake Pressure Modulator Valve Replacement (CTS-V)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) .
  17. Install the brake pipes to the frame.
  18. Remove the mechanics wire supporting the radiator.
  19. Install the wheel speed sensor wire harness to the frame.
  20. Install the electrical harness retainers (1) securing the engine harness (2) to the frame.
  21. Install the front compartment lower noise shield. Refer to «Front Compartment Lower Noise Shield Replacement (All Wheel Drive)»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  22. Install the front tires and wheels. Refer to «Tire and Wheel Removal and Installation»(/cadillac/cts/ii-2007-2014/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .
  23. Lower the vehicle.
  24. Remove the engine support fixture. Refer to «Engine Support Fixture»(/cadillac/cts/ii-2007-2014/remont/mechanical/#engine-mechanical-30l-or-36l-repair-instructions-on-vehicle-1-of-2__engine-support-fixture) .
  25. Align the vehicle. Refer to «Wheel Alignment Measurement»(/cadillac/cts/ii-2007-2014/remont/wheel-alignment/#wheel-alignment-system__wheel-alignment-measurement) .

J 39580 Engine Support Stand. See Special Tools .

  1. Install the engine support fixture. Refer to «Engine Support Fixture»(/cadillac/cts/ii-2007-2014/remont/mechanical/#engine-mechanical-30l-or-36l-repair-instructions-on-vehicle-1-of-2__engine-support-fixture) .
  2. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#general-information) .
  3. Remove the front wheels. Refer to «Tire and Wheel Removal and Installation»(/cadillac/cts/ii-2007-2014/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .
  4. Remove the front compartment lower noise shield. Refer to «Front Compartment Lower Noise Shield Replacement (Rear Wheel Drive)»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  5. Remove the electrical harness retainers (1) securing the engine harness (2) to the frame.
  6. Remove the wheel speed sensor wire harness from the frame.
  7. Remove the brake pipes from the frame.
  8. Remove the brake pressure modulator valve from the bracket assembly. Refer to «Brake Pressure Modulator Valve Replacement (CTS)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) or «Brake Pressure Modulator Valve Replacement (CTS-V)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) .
  9. Using mechanics wire, support the radiator and AC condenser assembly to the vehicle body.
  10. Remove the washer bottle bracket from the frame. Refer to «Windshield Washer Solvent Container Replacement (With CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Windshield Washer Solvent Container Replacement (Without CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system__windshield-washer-solvent-container-replacement-without) .
  11. Loosen the stabilizer shaft mounting bolts.
  12. Remove the lower stabilizer shaft link from the lower control arm. Refer to «Stabilizer Shaft Link Replacement (RWD)»(/cadillac/cts/ii-2007-2014/remont/suspension-front/#front-suspension-system) .
  13. Remove the power steering gear mounting bolts. Refer to «Steering Gear Replacement (Left Hand Drive With Rear Wheel Drive)»(/cadillac/cts/ii-2007-2014/remont/electronic-steering/#power-steering-system) or «Steering Gear Replacement (Right Hand Drive)»(/cadillac/cts/ii-2007-2014/remont/electronic-steering/#power-steering-system)
  14. Using mechanics wire secure the power steering gear to the engine.
  15. Separate the outer tie rod from the steering knuckle. Refer to «Steering Linkage Outer Tie Rod Replacement (Rear Wheel Drive)»(/cadillac/cts/ii-2007-2014/remont/electronic-steering/#power-steering-system) .
  16. Disconnect the lower ball joint from the steering knuckle.
  17. Remove the shock module yokes from the lower control arms. Refer to «Front Shock Absorber Yoke Replacement»(/cadillac/cts/ii-2007-2014/remont/suspension-front/#front-suspension-system) .
  18. Remove the engine mounts lower retaining nuts.
  19. Install J 39580 under the frame. See «Special Tools»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  20. Lower the vehicle to the frame support table.
  21. Remove the frame mounting bolts (1, 2).
  22. With the aid of an assistant, carefully raise the body from the frame.
  23. Ensure when raising the body the following items are clear from the frame: Brake pipes Steering knuckles Electrical wiring harnesses
  24. Remove the lower control arms.
  25. Remove the stabilizer shaft. Refer to «Stabilizer Shaft Replacement (RWD)»(/cadillac/cts/ii-2007-2014/remont/suspension-front/#front-suspension-system) .
  26. With the aid of an assistant, remove the frame from the support fixture.
  1. Install the lower control arm to the frame.
  2. Install the stabilizer shaft to the frame. Refer to «Stabilizer Shaft Replacement (RWD)»(/cadillac/cts/ii-2007-2014/remont/suspension-front/#front-suspension-system) . Do not tighten the stabilizer shaft mounting bolts at this time.
  3. With the aid of an assistant, position and secure the new frame assembly to the support fixture.
  4. With the aid of an assistant, carefully lower the body to the frame.
  5. Ensure the following components are clear from the frame: The electrical harness The steering knuckle assembly The brake pipes
  6. Install the frame mountings bolts (2) and tighten to 191 N.m (141 lb ft).
  7. Install the frame to body bolts (1) and tighten to 250 N.m (180 lb ft)
  8. Raise the vehicle.
  9. Install the engine mount lower retaining nuts and tighten to 50 N.m (37 lb ft).
  10. Remove the J 39580 from under the vehicle. See «Special Tools»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  11. Remove the mechanics wire supporting the power steering gear.
  12. Install the shock module yokes to the lower control arms. Refer to «Front Shock Absorber Yoke Replacement»(/cadillac/cts/ii-2007-2014/remont/suspension-front/#front-suspension-system) .
  13. Install the power steering gear mounting bolts. Refer to «Steering Gear Replacement (Left Hand Drive With Rear Wheel Drive)»(/cadillac/cts/ii-2007-2014/remont/electronic-steering/#power-steering-system) or «Steering Gear Replacement (Right Hand Drive)»(/cadillac/cts/ii-2007-2014/remont/electronic-steering/#power-steering-system) .
  14. Install the ball joint to the steering knuckle.
  15. Install the outer tie rod to the steering knuckle. Refer to «Steering Linkage Outer Tie Rod Replacement (Rear Wheel Drive)»(/cadillac/cts/ii-2007-2014/remont/electronic-steering/#power-steering-system) .
  16. Tighten the stabilizer shaft bolts and tighten 65 N.m (48 lb ft).
  17. Install the stabilizer shaft link to the lower control arms. Refer to «Stabilizer Shaft Link Replacement (RWD)»(/cadillac/cts/ii-2007-2014/remont/suspension-front/#front-suspension-system) .
  18. Install the brake pressure modulator valve to the bracket. Refer to «Brake Pressure Modulator Valve Replacement (CTS)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) or «Brake Pressure Modulator Valve Replacement (CTS-V)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) .
  19. Install the brake pipes to the frame.
  20. Install the washer bottle bracket to the frame. Refer to «Windshield Washer Solvent Container Replacement (With CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Windshield Washer Solvent Container Replacement (Without CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system__windshield-washer-solvent-container-replacement-without) .
  21. Remove the mechanics wire supporting the radiator.
  22. Install the wheel speed sensor wire harness to the frame.
  23. Install the electrical harness retainers (1) securing the engine harness (2) to the frame.
  24. Install the front compartment lower noise shield. Refer to «Front Compartment Lower Noise Shield Replacement (Rear Wheel Drive)»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  25. Install the front tires and wheels. Refer to «Tire and Wheel Removal and Installation»(/cadillac/cts/ii-2007-2014/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .
  26. Lower the vehicle.
  27. Remove the engine support fixture. Refer to «Engine Support Fixture»(/cadillac/cts/ii-2007-2014/remont/mechanical/#engine-mechanical-30l-or-36l-repair-instructions-on-vehicle-1-of-2__engine-support-fixture) .
  28. Align the vehicle. Refer to «Wheel Alignment Measurement»(/cadillac/cts/ii-2007-2014/remont/wheel-alignment/#wheel-alignment-system__wheel-alignment-measurement) .

J 39580 Engine Support Stand. See Special Tools .

  1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#general-information) .
  2. Remove the rear wheels. Refer to «Tire and Wheel Removal and Installation»(/cadillac/cts/ii-2007-2014/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .
  3. Remove the exhaust system. Refer to «Exhaust System Replacement (LSA)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system) or «Exhaust System Replacement (LF1)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system) or «Exhaust System Replacement (Single)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system) or «Exhaust System Replacement (LLT)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system) .
  4. Remove the propeller shaft. Refer to «Rear Propeller Shaft Replacement (RPO LSA)»(/cadillac/cts/ii-2007-2014/remont/driveshaft-universal-joints/#propeller-shaft) or «Rear Propeller Shaft Replacement (RPO LLT/LF1with MX7 or MN6)»(/cadillac/cts/ii-2007-2014/remont/driveshaft-universal-joints/#propeller-shaft) or «Rear Propeller Shaft Replacement (RPO LLT, LF1 with MXO)»(/cadillac/cts/ii-2007-2014/remont/driveshaft-universal-joints/#propeller-shaft) .
  5. Install the support fixture (3), in order to raise the lower control arm to relieve the tension from the shock.
  6. Remove the shocks lower mounting bolt (2).
  7. Remove the support fixture.
  8. Disconnect the electrical connectors for the rear wheel speed sensors (WSS).
  9. Disconnect the WSS wiring harness retainer clips from the upper control arms.
  10. Disconnect the rear brake pipe lines (1) forward of the rear wheelhouse.
  11. Remove the fastener for the brake pipe bracket (1).
  12. Remove the brake pipe bracket (2) from the studs in the body.
  13. Disconnect the intermediate park brake cable (2) from the front park brake cable connector.
  14. Remove the intermediate park brake cable from body bracket.
  15. Position the frame support table J 39580 . See «Special Tools»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  16. Remove the frame to body mounting bolts (4) and washers (3).
  17. Carefully raise the vehicle from the rear frame assembly.
  18. Remove the following components from the rear frame: «Headlamp Leveling Rear Suspension Height Sensor Replacement»(/cadillac/cts/ii-2007-2014/remont/exterior-lights/#lighting-system) «Lower Control Arm Replacement»(/cadillac/cts/ii-2007-2014/remont/suspension-rear/#rear-suspension-system) «Upper Control Arm Replacement»(/cadillac/cts/ii-2007-2014/remont/suspension-rear/#rear-suspension-system) The rear brake pipes «Parking Brake Rear Cable Replacement - Left Side (Without Electronic Park Brake)»(/cadillac/cts/ii-2007-2014/remont/parking-brake-system/#parking-brake-system) or «Parking Brake Rear Cable Replacement - Left Side (With Electronic Park Brake)»(/cadillac/cts/ii-2007-2014/remont/parking-brake-system/#parking-brake-system) or «Parking Brake Rear Cable Replacement - Right Side (Without Electronic Park Brake)»(/cadillac/cts/ii-2007-2014/remont/parking-brake-system/#parking-brake-system) or «Parking Brake Rear Cable Replacement - Right Side (With Electronic Park Brake)»(/cadillac/cts/ii-2007-2014/remont/parking-brake-system/#parking-brake-system) «Stabilizer Shaft Replacement»(/cadillac/cts/ii-2007-2014/remont/suspension-rear/#rear-suspension-system) «Adjust Link Replacement»(/cadillac/cts/ii-2007-2014/remont/suspension-rear/#rear-suspension-system) «Trailing Arm Replacement»(/cadillac/cts/ii-2007-2014/remont/suspension-rear/#rear-suspension-system) «Stabilizer Shaft Link Replacement»(/cadillac/cts/ii-2007-2014/remont/suspension-rear/#rear-suspension-system) «Rear Brake Caliper Replacement (JE5, J55)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#disc-brake-system) or «Rear Brake Caliper Replacement (J56)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#disc-brake-system) «Rear Brake Rotor Replacement (JE5, J55)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#disc-brake-system__rear-brake-rotor-replacement-je5-j55) or «Rear Brake Rotor Replacement (J56)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#disc-brake-system__rear-brake-rotor-replacement-j56) «Differential Replacement»(/cadillac/cts/ii-2007-2014/remont/differentials-drive-axles/#rear-drive-axle)
  19. With the aid from an assistant, remove the frame from the hydraulic jack.
  1. With the aid from an assistant, position and secure the new rear frame on the engine support fixture.
  2. Install the following components to the rear frame assembly: «Differential Replacement»(/cadillac/cts/ii-2007-2014/remont/differentials-drive-axles/#rear-drive-axle) «Rear Brake Rotor Replacement (JE5, J55)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#disc-brake-system__rear-brake-rotor-replacement-je5-j55) or «Rear Brake Rotor Replacement (J56)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#disc-brake-system__rear-brake-rotor-replacement-j56) «Rear Brake Caliper Replacement (JE5, J55)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#disc-brake-system) or «Rear Brake Caliper Replacement (J56)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#disc-brake-system) «Stabilizer Shaft Link Replacement»(/cadillac/cts/ii-2007-2014/remont/suspension-rear/#rear-suspension-system) «Trailing Arm Replacement»(/cadillac/cts/ii-2007-2014/remont/suspension-rear/#rear-suspension-system) «Adjust Link Replacement»(/cadillac/cts/ii-2007-2014/remont/suspension-rear/#rear-suspension-system) «Stabilizer Shaft Replacement»(/cadillac/cts/ii-2007-2014/remont/suspension-rear/#rear-suspension-system) «Parking Brake Rear Cable Replacement - Left Side (Without Electronic Park Brake)»(/cadillac/cts/ii-2007-2014/remont/parking-brake-system/#parking-brake-system) or «Parking Brake Rear Cable Replacement - Left Side (With Electronic Park Brake)»(/cadillac/cts/ii-2007-2014/remont/parking-brake-system/#parking-brake-system) or «Parking Brake Rear Cable Replacement - Right Side (Without Electronic Park Brake)»(/cadillac/cts/ii-2007-2014/remont/parking-brake-system/#parking-brake-system) or «Parking Brake Rear Cable Replacement - Right Side (With Electronic Park Brake)»(/cadillac/cts/ii-2007-2014/remont/parking-brake-system/#parking-brake-system) The rear brake pipes «Upper Control Arm Replacement»(/cadillac/cts/ii-2007-2014/remont/suspension-rear/#rear-suspension-system) «Lower Control Arm Replacement»(/cadillac/cts/ii-2007-2014/remont/suspension-rear/#rear-suspension-system) «Headlamp Leveling Rear Suspension Height Sensor Replacement»(/cadillac/cts/ii-2007-2014/remont/exterior-lights/#lighting-system)
  3. Index the rear coil springs to the spring insulators.
  4. Ensure the intermediate park brake cable is positioned over left side frame assembly on the left side.
  5. Lower the vehicle to the frame.
  6. Position the coil springs (3) to the upper spring insulator (2).
  7. Index the rear side frame mounts to the rear locator sleeves (1) located on the body.
  8. Lower the vehicle until the frame mounts contact the body rail.
  9. Install the rear frame washers (3) and anchor bolts (4). Tighten the front bolts to 250 N.m (180 lb ft). Tighten the rear bolts to 191 N.m (141 lb ft).
  10. Raise the vehicle.
  11. Remove the J 39580 . See «Special Tools»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  12. Install the support fixture (3) in order to raise the lower control arms for ease of lower shock bolt installation (2).
  13. Install the lower shock bolt (2) to 150 N.m (111 lb ft).
  14. Repeat the above step for the other side.
  15. Remove the support fixture (3).
  16. Install the intermediate park brake cable to the body bracket.
  17. Connect the intermediate park brake cable (2) to the front park brake cable connector.
  18. Position the brake pipe bracket (2) to the body studs.
  19. Install the brake pipe bracket retaining nuts (1) and tighten to 10 N.m (89 lb in).
  20. Connect the rear brake lines (1) at the forward rear wheelhouse and tighten the lines to 15 N.m (11 lb ft).
  21. Connect the rear WSS electrical connectors.
  22. Secure the WSS electrical harness retainer clips to the upper control arms.
  23. Install the propeller shaft. Refer to «Rear Propeller Shaft Replacement (RPO LSA)»(/cadillac/cts/ii-2007-2014/remont/driveshaft-universal-joints/#propeller-shaft) or «Rear Propeller Shaft Replacement (RPO LLT/LF1with MX7 or MN6)»(/cadillac/cts/ii-2007-2014/remont/driveshaft-universal-joints/#propeller-shaft) or «Rear Propeller Shaft Replacement (RPO LLT, LF1 with MXO)»(/cadillac/cts/ii-2007-2014/remont/driveshaft-universal-joints/#propeller-shaft) .
  24. Install the exhaust system. Refer to «Exhaust System Replacement (LSA)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system) or «Exhaust System Replacement (LF1)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system) or «Exhaust System Replacement (Single)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system) or «Exhaust System Replacement (LLT)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system) .
  25. Install the rear wheels. Refer to «Tire and Wheel Removal and Installation»(/cadillac/cts/ii-2007-2014/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .
  26. Lower the vehicle.
  27. Bleed the hydraulic brake system. Refer to «Hydraulic Brake System Bleeding (Manual)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#hydraulic-brake-system) or «Hydraulic Brake System Bleeding (Pressure)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#hydraulic-brake-system) .
  28. Align the vehicle. Refer to «Wheel Alignment Measurement»(/cadillac/cts/ii-2007-2014/remont/wheel-alignment/#wheel-alignment-system__wheel-alignment-measurement) .

Scheme 3

Scheme 3: Front Wheelhouse Liner Replacement
Scheme 3: Front Wheelhouse Liner Replacement
CalloutComponent Name
Preliminary Procedure: Remove the wheelhouse extension. Refer to Wheelhouse Extension Replacement .
1Front Wheelhouse Liner Push-Pin (Qty: 4)
2Front Wheelhouse Liner

Scheme 4

Scheme 4: Rear Wheelhouse Panel Liner Replacement
Scheme 4: Rear Wheelhouse Panel Liner Replacement
CalloutComponent Name
Preliminary Procedure: Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
1Rear Wheelhouse Liner Plastic Retainer (Qty: 6)
2Rear Wheelhouse Liner Procedure: Install using the reverse procedure, with the proper alignment of the rear wheelhouse liner.

Scheme 5

Scheme 5: Wheelhouse Extension Replacement
Scheme 5: Wheelhouse Extension Replacement
CalloutComponent Name
Preliminary Procedures Remove the front fender liner. Refer to Front Wheelhouse Liner Replacement . Remove the engine splash shield. Refer to Engine Splash Shield Replacement .
1Wheelhouse Extension Push-Pin (Qty: 8)
2Wheelhouse Extension Tip: Turn the extension to the side to remove.

Scheme 6

Scheme 6: Front Brake Caliper Cooling Duct Replacement (European)
Scheme 6: Front Brake Caliper Cooling Duct Replacement (European)
CalloutComponent Name
Preliminary Procedure: Remove the front wheelhouse extension. Refer to Wheelhouse Extension Replacement .
1Front Brake Caliper Cooling Duct Rear
2Front Brake Caliper Cooling Duct Retainer (Qty: 2) Tip: Use a suitable tool in order to remove the brake caliper cooling duct retainers.
3Front Brake Caliper Cooling Duct Front Tip: Remove the duct from the bottomside of the windshield washer container assembly.

Scheme 7

Scheme 7: Front Brake Caliper Cooling Duct Replacement (North America)
Scheme 7: Front Brake Caliper Cooling Duct Replacement (North America)
CalloutComponent Name
Preliminary Procedure: Remove the front wheelhouse extension. Refer to Wheelhouse Extension Replacement .
1Front Brake Caliper Cooling Duct Retainer (Qty: 2) Tip: Use a suitable tool in order to remove the brake caliper cooling duct retainers from the front side of the bumper fascia.
2Front Brake Caliper Cooling Duct Rear
3Front Brake Caliper Cooling Duct Front Tip: Remove the duct from the front fog lamp bezel assembly.

Scheme 8

Scheme 8: Front Fog Lamp Bezel Replacement (w/T96)
Scheme 8: Front Fog Lamp Bezel Replacement (w/T96)
CalloutComponent Name
Preliminary Procedure Remove the front wheelhouse extension. Refer to Wheelhouse Extension Replacement . Remove the front brake caliper cooling duct. Refer to Front Brake Caliper Cooling Duct Replacement (European) or Front Brake Caliper Cooling Duct Replacement (North America) .
1Front Fog Lamp Bezel Screw CAUTION: Refer to Fastener Caution . Tighten: 1.3 N.m (12 lb in)
2Front Fog Lamp Bezel Retention Clip (Qty: 2)
3Front Fog Lamp Bezel Procedure Disengage the six inner retainer tabs securing the bezel to the front bumper fascia. Pull outward from the outer edge in order to release the outer retention clips securing the bezel to the front bumper fascia. Remove the front fog lamp bezel.
CAUTION
Refer to Fastener Caution .

Scheme 9

Scheme 9: Front Fog Lamp Bezel Replacement (w/o T96)
Scheme 9: Front Fog Lamp Bezel Replacement (w/o T96)
CalloutComponent Name
Preliminary Procedure Remove the front wheelhouse extension. Refer to Wheelhouse Extension Replacement . Remove the front brake caliper cooling duct. Refer to Front Brake Caliper Cooling Duct Replacement (European) or Front Brake Caliper Cooling Duct Replacement (North America) .
1Front Fog Lamp Bezel Screw Tip: Hand tighten the screw only, no torque required.
2Front Fog Lamp Bezel Tip: Remove the bezel from the fascia by pushing the bezel outward from the front bumper fascia.

Scheme 10

Scheme 10: Engine Splash Shield Replacement
Scheme 10: Engine Splash Shield Replacement
CalloutComponent Name
Preliminary Procedure: Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
1Engine Splash Shield Plastic Retainer (Qty: 4)
2Engine Splash Shield

Scheme 11

Scheme 11: Transmission Support Replacement (Manual except CTS-V)
Scheme 11: Transmission Support Replacement (Manual except CTS-V)
CalloutComponent Name
Preliminary Procedures Raise the vehicle. Refer to Lifting and Jacking the Vehicle . Support the transmission.
1Transmission Mount Bolt (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten: 60 N.m (44 lb ft)
2Transmission Support Bolt (Qty: 4) Tighten: 60 N.m (44 lb ft)
3Transmission Support
CAUTION
Refer to Fastener Caution .

Scheme 12

Scheme 12: Transmission Support Replacement (Automatic RWD except CTS-V)
Scheme 12: Transmission Support Replacement (Automatic RWD except CTS-V)
CalloutComponent Name
Preliminary Procedures Raise the vehicle. Refer to Lifting and Jacking the Vehicle . Support the transmission.
1Transmission Mount Bolt (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten: 60 N.m (44 lb ft)
2Transmission Support Bolt (Qty: 4) Tighten: 60 N.m (44 lb ft)
3Transmission Support
CAUTION
Refer to Fastener Caution .

Transmission Support Replacement (Automatic CTS-V)

CalloutComponent Name
Preliminary Procedures Raise the vehicle. Refer to Lifting and Jacking the Vehicle . Support the transmission.
1Transmission Mount Bolt (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten: 80 N.m (59 lb ft)
2Transmission Support Bolt (Qty: 4) Tighten: 60 N.m (44 lb ft)
3Transmission Support
CAUTION
Refer to Fastener Caution .

Transmission Support Replacement (Manual CTS-V)

CalloutComponent Name
Preliminary Procedures Raise the vehicle. Refer to Lifting and Jacking the Vehicle . Support the transmission.
1Transmission Mount Bolt (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten: 80 N.m (59 lb ft)
2Transmission Support Bolt (Qty: 4) Tighten: 60 N.m (44 lb ft)
3Transmission Support
CAUTION
Refer to Fastener Caution .
  1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#general-information)
  2. Remove the exhaust system from the vehicle. Refer to «Exhaust System Replacement (LSA)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system) or «Exhaust System Replacement (LF1)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system) or «Exhaust System Replacement (Single)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system) or «Exhaust System Replacement (LLT)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system)
  3. Support the transmission with a suitable jack and a block of wood.
  4. Remove the travel mount restrictor bolt (5).
  5. Remove the transmission support retaining bolts (3), then remove the transmission support (2) from the vehicle
  1. Install the transmission support.
  2. Install the transmission support bolts (3) and tighten to 60 N.m (44 lb ft)
  3. Install the transmission travel mount restrictor bolt and tighten to 100 N.m (74 lb ft)
  4. Remove the support from under the transmission.
  5. Install the exhaust system from the vehicle. Refer to «Exhaust System Replacement (LSA)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system) or «Exhaust System Replacement (LF1)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system) or «Exhaust System Replacement (Single)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system) or «Exhaust System Replacement (LLT)»(/cadillac/cts/ii-2007-2014/remont/exhaust/#engine-exhaust-system)
  6. Lower the vehicle.

Transmission Support Adjustment (Manual except CTS-V)

CalloutComponent Name
Preliminary Procedures Raise the vehicle. Refer to Lifting and Jacking the Vehicle . Support the transmission. Loosen the four transmission support to body bolts. Loosen the two mount to transmission tail cone bolts. Reposition the transmission mount and support.
1Transmission Mount Bolt (Qty: 2) CAUTION: Refer to Fastener Caution . Procedure: Re-torque the two mount to transmission tail cone bolts first. Tip: Ensure transmission support is perpendicular to the driveline or parallel to the body. Tighten: 60 N.m (44 lb ft)
2Transmission Support Bolt (Qty: 4) Procedure: Re-torque the four transmission support to body bolts. Tighten: 60 N.m (44 lb ft)
3Transmission Support Procedure: Inspect to make certain the vertical travel limiter is not binding against support.
CAUTION
Refer to Fastener Caution .

Transmission Support Adjustment (Automatic RWD except CTS-V)

CalloutComponent Name
Preliminary Procedures Raise the vehicle. Refer to Lifting and Jacking the Vehicle . Support the transmission. Loosen the four transmission support to body bolts. Loosen the two mount to transmission tail cone bolts. Reposition the transmission mount and support.
1Transmission Mount Bolt (Qty: 2) CAUTION: Refer to Fastener Caution . Procedure: Re-torque the two mount to transmission tail cone bolts first. Tip: Ensure transmission support is perpendicular to the driveline or parallel to the body. Tighten: 60 N.m (44 lb ft)
2Transmission Support Bolt (Qty: 4) Procedure: Re-torque the four transmission support to body bolts. Tighten: 60 N.m (44 lb ft)
3Transmission Support Procedure: Inspect to make certain is not the vertical travel limiter binding against support.
CAUTION
Refer to Fastener Caution .

Scheme 13

Scheme 13: Transmission Support Adjustment (Automatic CTS-V)
Scheme 13: Transmission Support Adjustment (Automatic CTS-V)
CalloutComponent Name
Preliminary Procedures Raise the vehicle. Refer to Lifting and Jacking the Vehicle . Support the transmission. Loosen the four transmission support to body bolts. Loosen the two mount to transmission tail cone bolts. Reposition the transmission the mount and support.
1Transmission Mount Bolt (Qty: 2) CAUTION: Refer to Fastener Caution . Procedure: Re-torque the two mount to transmission tail cone bolts first. Tip: Ensure transmission support is perpendicular to the driveline or parallel to the body. Tighten: 80 N.m (59 lb ft)
2Transmission Support Bolt (Qty: 4) Procedure: Re-torque the four transmission support to body bolts. Tighten: 60 N.m (44 lb ft)
3Transmission Support Procedure: Inspect to make certain the vertical travel limiter is not binding against support.
CAUTION
Refer to Fastener Caution .

Transmission Support Adjustment (Manual CTS-V)

CalloutComponent Name
Preliminary Procedures Raise the vehicle. Refer to Lifting and Jacking the Vehicle . Support the transmission. Loosen the four transmission support to body bolts. Loosen the two mount to transmission tail cone bolts. Reposition the transmission mount and support.
1Transmission Mount Bolt (Qty: 2) CAUTION: Refer to Fastener Caution . Procedure: Re-torque the two mount to transmission tail cone bolts first. Tip: Ensure transmission support is perpendicular to the driveline or parallel to the body. Tighten: 80 N.m (59 lb ft)
2Transmission Support Bolt (Qty: 4) Procedure: Re-torque the four transmission support to body bolts. Tighten: 60 N.m (44 lb ft)
3Transmission Support Procedure: Inspect to make certain the vertical travel limiter is not binding against support.
CAUTION
Refer to Fastener Caution .

Underbody Inspection

  1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#general-information) .
  2. Check for obvious deterioration of the floor pan.
  3. Check for loose dirt and corrosion around the inside of the floor pan reinforcement member access holes. This is the first indication that corrosion may exist in hidden areas, and repairs may be required before the final cleaning and protective treatment is performed.
  4. Using a chisel, ensure that the drain provisions in the floor pan reinforcement members are open. There are drain holes in the body side panels also. These holes can be opened using a punch or a drift. The side panel drain holes are in the rear section of the rocker panels, and in the lower rear quarter panels.

The following components are supported by a front crossmember frame which is rigidly bolted to the body rail at 4 locations

  1. The engine
  2. The transmission mounts
  3. The front suspension lower control arms
  4. The steering linkage

The following components are supported by the rear suspension frame which is attached to the body rail through rubber insulators at 3 locations

  1. The rear differential
  2. The rear axles
  3. The rear suspension components

The underbody frames must be properly aligned to maintain the correct suspension and wheel alignment.

The individual underbody components contribute directly to the overall strength of the unibody. Use proper welding techniques during service repair operations. Refer to Collision Repair for welding information and for vehicle preparation.

The components must be corrosion protected whenever body repair operations damage or destroy the original sealing surfaces. Use a 2 part catalyzed primer such as PPG DP40 or equivalent when corrosion protection is needed to welded surfaces. Apply the sealers and anti-corrosion materials as necessary. Refer to Anti-Corrosion Treatment and Repair . Do not combine paint systems. Refer to Basecoat/Clearcoat Paint Systems for further information.

Illustration Tool Number/ Description J 39580 Engine Support Stand

Scheme 14

Scheme 14: Special Tools
Scheme 14: Special Tools

See also:
• Lifting and Jacking the Vehicle
• Fastener Caution
• Engine Support Fixture
• Tire and Wheel Removal and Installation
• Brake Pressure Modulator Valve Replacement (CTS)
• Stabilizer Shaft Link Replacement (AWD)
• Steering Gear Replacement (Left Hand Drive With All Wheel Drive)
• Wheel Alignment Measurement
• Windshield Washer Solvent Container Replacement (With CE4)
• Windshield Washer Solvent Container Replacement (Without CE4)
• Exhaust System Replacement (LSA)
• Rear Propeller Shaft Replacement (RPO LSA)
• Headlamp Leveling Rear Suspension Height Sensor Replacement
• Lower Control Arm Replacement
• Parking Brake Rear Cable Replacement - Left Side (Without Electronic Park Brake)
• Rear Brake Caliper Replacement (JE5, J55)
• Rear Brake Rotor Replacement (JE5, J55)
• Rear Brake Rotor Replacement (J56)
• Differential Replacement
• Hydraulic Brake System Bleeding (Manual)
• Anti-Corrosion Treatment and Repair
• Basecoat/Clearcoat Paint Systems
• Special Tools