Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSGMC2021SAVANA 2500 LS, 6.6L ENG VIN 7REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 19 (HYDRAULIC BRAKES)
2021 GMC Savana 2500 LS, 6.6L Eng VIN 7
Section 19 (Hydraulic Brakes)
2021 GMC Savana 2500 LS, 6.6L Eng VIN 7SECTION Section 19 (Hydraulic Brakes)
WARNING: This page is about a different car, the 2022 GMC Savana 3500, 2022 GMC Savana 2500, 2022 Chevrolet Express 3500, and 2022 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic Wiring Diagrams
- Diagnostic Information and Procedures
- DTC C0267
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- Symptoms - Hydraulic Brakes
- Brake Warning Indicator Malfunction (with UJ1)
- Brake Warning Indicator Malfunction (without UJ1)
- Brake Pulsation
- Brake System Noise
- Braking Action Uneven - Pulls to One Side
- Braking Action Uneven - Front to Rear
- Brake Pedal Excessive Travel
- Brake Pedal Excessive Effort
- Brakes Drag
- Brake System Slow Release
- Brake Fluid Loss
- Brakes Self Apply When Turning Steering Wheel
- Disc Brake System Diagnosis
- Hydraulic Brake System Diagnosis
- Brake Assist System Diagnosis
- Brake System Vehicle Road Test
- Brake Pedal Travel Measurement and Inspection
- Hydraulic Brake Booster Leak Inspection
- Hydraulic Brake Assist System Noise Inspection
- Brake System External Leak Inspection
- Brake System Internal Leak Test
- Hydraulic Brake Component Operation Visual Inspection
- Brake Pipe and Hose Inspection
- Brake Pedal Pushrod Inspection
- DTC C0267
- Repair Instructions
- Hydraulic Brake Fluid Replacement
- Brake Master Cylinder Reservoir Filling
- Brake Master Cylinder Reservoir Replacement
- Brake Master Cylinder Replacement
- Brake Master Cylinder Bench Bleeding
- Brake Fluid Level Indicator Switch Replacement
- Brake Pedal Assembly Replacement
- Brake Pipe Replacement
- Front Brake Hose Replacement
- Rear Brake Hose Replacement - Left Side (JH6)
- Rear Brake Hose Replacement - Left Side (JH9)
- Rear Brake Hose Replacement - Right Side (JH6)
- Rear Brake Hose Replacement - Right Side (JH9)
- Hydraulic Brake System Bleeding (Pressure)
- Hydraulic Brake System Bleeding (Manual)
- Hydraulic Brake System Flushing
- Power Brake Booster Replacement
- Power Brake Booster Fluid Flow Alarm Switch Replacement
- Description and Operation
- Special Tools and Equipment
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.