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Genuine GMC Sonoma Brake Master Cylinder
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8 Brake Master Cylinders found
GMC Sonoma Brake Master Cylinder
Brake Master Cylinder is an important part of braking system of GMC Sonoma and its function is to amplify the force exerted by the driver's foot into hydraulic pressure. This mechanism works through forcing the fluid to flow through the system to the slave cylinders which in turn play a role in making the brakes to operate and hence produce the necessary friction to halt the vehicle. In most cases, master cylinder fixed on the front of vacuum power booster with or without internal and external fluid tank. In years past GMC Sonoma vehicles have used dual circuit master cylinders; if one circuit goes out the other can still supply the brake power. This design makes operation safe by achieving a level of autonomy where the machine can keep operating if the hydraulic system is compromised. Some common problems with the Brake Master Cylinder are the leakage of the fluid, problems with aeration and internal failure, all of which may result in poor braking system. Routine check up's for signs of leakage or moisture is crucial to the durability of the braking system.
Each OEM GMC Sonoma Brake Master Cylinder we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.
GMC Sonoma Brake Master Cylinder Parts Questions & Experts Answers
- Q: How do you remove the master cylinder?A: To remove the brake master cylinder, start by placing rags under the brake line fittings and preparing caps or plastic bags to cover the ends of the lines once they're disconnected. Then, use a flare-nut wrench to loosen the tube nuts at the ends of the brake lines where they enter the brake master cylinder. Pull the brake lines away slightly and plug the ends to prevent contamination. If the vehicle has a Rear-Wheel Anti-Lock (RWAL) brake system, remove the RWAL module. Remove the two brake master cylinder mounting nuts and set aside the bracket for the RWAL module and isolation/dump valve. Remove the brake master cylinder from the vehicle and discard any remaining fluid in the reservoir. To overhaul the brake master cylinder, mount it in a padded vise and remove the primary piston lock ring. Take out the primary and secondary piston assemblies from the cylinder bore, and remove the reservoir and grommets. Do not attempt to remove the quick take-up valve. Inspect the cylinder bore for damage and replace if necessary. Lubricate and install new reservoir grommets, then press the brake master cylinder body onto the reservoir. Install new secondary seals on the second piston assembly. For installation, attach the spring seat to the secondary piston assembly and install the primary piston assembly in the cylinder bore. Inspect and replace any damaged reservoir cover and diaphragm. Bench bleed the brake master cylinder by filling it with brake fluid and holding your fingers tightly over the holes where the brake lines normally connect. Stroke the piston several times to expel air. Carefully install the brake master cylinder by reversing the removal steps and bleed the brake system.
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