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Home >> Cadillac >> 2021 >> XT5 Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 686 (Hydraulic Brake System) >> Diagnostic Information and Procedures >> Brakes Drag

Brakes Drag

WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Step Action Yes No
DEFINITION: Brake system does not fully release or has delayed release; vehicle motion may be hindered by brake system without applying brakes.
1 Were you sent here from the Hydraulic Brake Symptom table? Go to Step 2  Go to Diagnostic Starting Point - Vehicle
2 Inspect the park brake system for proper operation. Park Brake System Diagnosis
Did you find and correct a condition?		 Go to Step 7  Go to Step 3 
3
  1. Inspect the disc brake system for the following conditions:
    • Binding, incorrectly installed or missing caliper hardware and/or lining hardware - Ensure free movement of linings and of caliper, if equipped with sliding type caliper
    • Lack of lubrication or excessive corrosion on metal to metal contact surfaces
    • Distorted or damaged linings
    • Damaged or excessively worn caliper hardware and/or lining hardware
    • Bent or damaged caliper or mounting component
  2. Adjust, repair or replace components as necessary. Disc Brake System Diagnosis 
Did you find and correct a condition?		 Go to Step 7  Go to Step 4 
4
  1. Separate the brake booster pushrod from the brake pedal.
  2. Inspect the brake corners to determine if the brake drag condition is still present.
Do the brake corners still exhibit the brake drag condition?		 Go to Step 6  Go to Step 5 
5
  1. Inspect the pushrod for improper positioning and/or damage. Correctly position or replace the pushrod if necessary.
  2. Inspect the brake pedal assembly for damage and replace if necessary.
Did you complete the repair or replacement?		 Go to Step 7  -
6
  1. Inspect the hydraulic brake system for the following conditions.
    • Improper operation of caliper pistons
    • Contaminated brake fluid
    • Internally damaged flexible brake hoses; hindering brake release
    • Damaged or improperly operating master cylinder
  2. Adjust, repair or replace components as necessary. Hydraulic Brake System Diagnosis 
Did you find and correct a condition?		 Go to Step 7  Go to Diagnostic Starting Point - Vehicle
7
  1. Install or connect components that were removed or disconnected during diagnosis.
  2. Road test the vehicle in order to confirm proper operation. Brake System Vehicle Road Test 
Is the condition still present?		 Go to Step 2  System OK
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