what causes my Cadillac Escalade T1XX (2021-Present) to shake when braking

Symptoms

• Steering wheel shakes during braking
• Vibration felt in the brake pedal
• Uneven braking performance
• Noise during braking (such as grinding or squeaking)
• Increased stopping distance
• Potential pulsating feel in the brake pedal

Diagnostic Steps

1. Inspect brake rotors for warping or uneven wear using a dial indicator.
2. Check brake pads for wear and proper seating against the rotors.
3. Examine wheel lug nut torque to ensure they are properly tightened.
4. Inspect suspension components (e.g., control arms, bushings) for wear or damage.
5. Perform a visual inspection of the wheel assembly for any debris or damage.
6. Test drive the vehicle to confirm symptoms under different braking conditions.

Solution

1. Preparation

• Gather required tools and parts.
• Ensure the vehicle is parked on a level surface and engage the parking brake.
• Gather safety equipment (gloves, goggles).

2. Lift the Vehicle

• Use a hydraulic jack to lift the front of the vehicle.
• Secure with jack stands to ensure safety.

3. Remove Wheel and Brake Components

• Use a socket set to remove the wheel lug nuts, then remove the wheel.
• Unbolt the brake caliper using a socket wrench; hang it securely to avoid stress on the brake line.
• Remove the brake pads from the caliper bracket.

4. Inspect and Replace Brake Rotors

• Measure rotor thickness and check for warping with a dial indicator.
• If warped or worn, remove the rotor by unbolting it from the hub.
• Install new rotors, ensuring they are clean and free of oils; torque bolts to manufacturer specifications.

5. Install New Brake Pads

• Apply brake grease to the back of the new brake pads to prevent noise.
• Insert the new brake pads into the caliper bracket.
• Reinstall the caliper over the pads and torque bolts to specifications.

6. Reassemble and Lower the Vehicle

• Reattach the wheel and torque the lug nuts in a star pattern to the specified torque.
• Lower the vehicle from jack stands and remove the hydraulic jack.

7. Test Operation

• Pump the brake pedal a few times to seat the pads against the rotors before test driving.

Tools Required:

• Hydraulic jack
• Jack stands
• Socket set
• Torque wrench
• Dial indicator

Parts Required:

• Brake rotors (if warped)
• Brake pads (if worn)

Estimated Repair Time: 2-4 hours

Safety Warnings:

• Always disconnect the battery before working on the braking system.
• Ensure the vehicle is securely lifted and supported before working underneath.