Brake Pedal Clunk Possible Brake Drag - keywords adjust adjustable column drag electronic EPS odor power steer steering

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition:

Some customers may comment that with the steering wheel adjusted in the full down position, there may be a clunk when the brake pedal is released. The clunk can be felt in the steering wheel as well. There may be a code C0131 setting and possibly have comments of brake drag.

Cause:

The EPS (Electronic Power Steering) column motor housing may be contacting the bracket for the adjustable pedals.

Correction:

1. Remove brake booster from cowl, keeping the gasket with the booster
2. Install one washer, p/n 11518111, on each stud of the brake booster and reinstall booster. The washer should be positioned between the cowl and the seal.
3. The new brake pedal position must be learned, otherwise the brake lights may be on with out pedal apply. To learn the new pedal position follow theses steps.

Install Tech2/ candi Module and access Body systems/ BCM/ Module set up/ BPP Sensor Calibration and follow the instructions.

Important: The BPP sensor calibration should be done with the steering column in the full down position.

4. Evaluate that there is no clunk noise when the pedal is released and the steering column is in the full down position and that the brake lights are off with the pedal released.

Note: If a new booster seal is needed the part number is 22729487.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.