Question 1

How to overhaul the brake master cylinder on Chevrolet Avalanche 1500?

Accepted Answer

Begin by removing the Brake Master Cylinder from the vehicle then fix the mounting flange into a bench vise to reach the primary Piston located at the back. Before removing the reservoir cap users should clean its surrounding area along with the diaphragm for inspection of cuts or cracks or nicks or deformation to replace any damaged components. Use a smooth round-ended tool to depress the primary Piston then extract the Piston retainer before you can remove the primary Piston assembly. Low pressure filtered non-lubricated air should enter the front outlet port with plugged cylinder inlet and rear outlet ports to eliminate the secondary Piston along with primary and secondary seals and return spring. Remove the complete primary Piston assembly with its Piston retainer and seals for disposal. Master cylinders should be cleaned externally and internally with denatured alcohol before inspecting for damage such as cracks, scoring, pitting and corrosion. If issues appear replace the master cylinder. Lubricate the master cylinder bore, secondary Piston , and return spring along with all overhaul components using delco supreme 11(r) (GM P/N 12377967, Canadian P/N 992667) or equivalent dot-3 brake fluid from a sealed and clean container. Use filtered air to dry all components before the procedure. Install the lubricated new primary seal and retainer with the new secondary seal onto the secondary Piston then position the lubricated return spring and secondary Piston assembly into the cylinder bore before installing the lubricated new primary Piston assembly . A round-ended tool should be used to depress the primary Piston for installing the new Piston retainer before reinstalling the master cylinder reservoir and its cap and diaphragm. The installation process ends with the replacement of the master cylinder within the vehicle.

Question 2

How to replace the Brake Master Cylinder (Hydraulic Boost) on Chevrolet Avalanche 1500?

Accepted Answer

Put the park brake on and block the wheels before working on the Brake Master Cylinder (Hydraulic Boost). Put a plug over brake pipe ends to block brake fluid from escaping when you detach the hose connection to the Brake Fluid Level Sensor. You should unhook the brake lines from the master cylinder then seal the open brake pipe ends. Take the master cylinder out of the car by removing its mounting nuts first and then taking out the master cylinder reservoir. To begin installation you need to put the master cylinder reservoir in place first. Before putting the master cylinder back into the vehicle perform a fluid drainage operation called bench bleed. Secure the master cylinder mounting bolts by tightening them to 36 n.m (27 ft lb). Put together the connected brake pipes by adding the rubber caps back at the exposed ends then tightening the fittings to 25 n.m (18 lb ft). Join the brake fluid sensor electrical connector as you run hydraulic brake system bleeding. Complete the job by releasing the parking break and moving the wheels once free.

OEM Chevrolet Avalanche 1500 Brake Master Cylinder

10 Brake Master Cylinders found

Chevrolet Avalanche 1500 Overhaul Kit Part Number: 19209252

Chevrolet Avalanche 1500 Master Cylinder Part Number: 19209250

Chevrolet Avalanche 1500 Master Cylinder Part Number: 19209249

Chevrolet Avalanche 1500 Master Cylinder Part Number: 19209239

Chevrolet Avalanche 1500 Master Cylinder Part Number: 19209236

Chevrolet Avalanche 1500 Overhaul Kit Part Number: 19209251

Chevrolet Avalanche 1500 Master Cylinder Part Number: 19209234

Chevrolet Avalanche 1500 Master Cylinder Part Number: 19209199

Chevrolet Avalanche 1500 Master Cylinder Part Number: 19209191

Chevrolet Avalanche 1500 Master Cylinder Part Number: 18047524

Chevrolet Avalanche 1500 Brake Master Cylinder

Chevrolet Avalanche 1500 Brake Master Cylinder Parts and Q&A

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