Rear passenger wheel spin when emergency brake engaged

Hi:

It sounds like the parking brake shoes (which are on the inside of the brake rotor) have come apart or are completely out of adjustment.

Here are the directions for checking the parking brake shoes. The attached pic correlates with the directions.

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2004 Buick Truck Rendezvous AWD V6-3.4L VIN E
Park Brake Shoe Inspection
Vehicle Brakes and Traction Control Parking Brake System Testing and Inspection Component Tests and General Diagnostics Park Brake Shoe Inspection
PARK BRAKE SHOE INSPECTION
Park Brake Shoe Inspection

Caution: Refer to Brake Dust Caution in Service Precautions.

Pic 1

1. Raise and support the vehicle.
2. Remove the tire and wheel.
3. Remove the rear brake caliper bracket with the rear brake caliper.
4. Remove the rear brake rotor.
5. Inspect the park brake shoe and lining. If it exhibits any of the following conditions, then it requires replacement:
- Excessive wear indicated by the park brake lining being worn down to the shoe
- Brake lining cracking
- Oil or fluid contamination of the brake lining
6. Install the rear brake rotor.
7. Install the rear brake caliper with the rear brake caliper bracket.
8. Install the tire and wheel.
9. Lower the vehicle.

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The above directions are if you have rear disc brakes. If you have drum brakes, you need to remove the brake drum and inspect for broken springs, retainers, adjuster and so on.

Here are the directions for replacing the parking brake hardware on a drum system. I'm including replacement directions because they show everything that need checked. The attached pics correlate with the directions.

2004 Buick Truck Rendezvous AWD V6-3.4L VIN E
Procedures
Vehicle Brakes and Traction Control Parking Brake System Service and Repair Procedures
PROCEDURES
Park Brake Hardware Replacement (Drum)

Removal Procedure

Caution: Refer to Brake Dust Caution in Service Precautions.

Caution: Keep fingers away from rear brake shoe springs to prevent fingers from being pinched between spring and shoe web or spring and backing plate.

1. Raise and support the vehicle.

Pic 2

2. Remove the brake drum.

Pic 3

3. Notice: Do not over stretch the adjuster spring. Damage can occur if the spring is over stretched.

Disengage the adjuster spring hook end from the tab on the adjuster actuator (1).
4. Remove the straight end of the adjuster spring from the brake shoe.
5. Remove the adjuster actuator from the brake shoe.

Pic 4

6. Remove the return spring (7) from the brake shoes.
7. Remove the park brake cable (6) from the park brake actuator lever (5).
8. Remove the brake shoe hold-down springs and retainers (4) from the brake shoes.
9. Remove the adjuster from the brake shoes and the park brake actuator lever.
10. Remove the horseshoe clip retaining the park brake actuator lever to the brake shoe.
11. Remove the park brake actuator lever and wave washer from the brake shoe.
12. Clean all of the drum brake system components with denatured alcohol.
13. Inspect all of the drum brake system components.
14. Replace drum brake system components as necessary.
15. Inspect the wheel cylinder for the following conditions:
- Brake fluid leakage
- Worn or damaged dust boots
16. Replace damaged or leaking wheel cylinders as necessary.

Installation Procedure

pic 5

1. Apply GM P/N 1052196 brake lubricant (or equivalent) to the following areas:
- The brake shoe contact points on the backing plate
- The adjuster screw threads
- The inside diameter of the adjuster socket

pic 6

2. Install the park brake actuator lever and wave washer to the brake shoe.
3. Install the horseshoe clip to the park brake actuator lever pivot pin.
4. Install the brake shoes to the brake backing plate.
5. Install the brake shoe hold-down pins, springs and retainers (4) to the brake shoes.
6. Install the park brake cable (6) to the park brake actuator lever.

Pic 7

7. Important: Ensure that the adjuster (2) engages the brake shoe (4) and the park brake actuator (3) properly.

Install the adjuster screw to the brake shoe and the park brake actuator.
8. Apply GM P/N 1052196 brake lubricant (or equivalent) to the adjuster actuator/brake shoe interface.
9. Install the adjuster actuator (1) to the brake shoe.

Pic 8

10. Notice: Do not over stretch the adjuster spring. Damage can occur if the spring is over stretched.

Install the straight end of the adjuster spring (3) to the brake shoe.
11. Install the adjuster spring hook end to the tab on the adjuster actuator (1).
12. Install the return spring (7) to the brake shoes.

13. Important: Ensure that the adjuster operates properly.

Move the park brake actuator lever (5) in order to spread the brake shoes apart. The adjuster actuator lever should move downward, then upward as the park brake actuator lever is released, forcing the adjuster wheel to rotate. If the adjuster does not operate properly, remove then reinstall the adjuster.
14. Adjust the brake shoes.
15. Adjust the park brake cable.

Pic 9

16. Install the brake drum.
17. Lower the vehicle.
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Let me know if this helps and what you find.

Take care,
Joe