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Replacement and OEM Parts for 2008 Cadillac CTS Brake Master Cylinder

2008 Cadillac CTS Brake Master Cylinder

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2008 Cadillac CTS
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Brake Boosters & Brake Master Cylinders
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3 Products found

9 Q&A for Brake Master Cylinder Repair
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FAQ for Brake Master Cylinder Repair

Q: What must be noticed when adding fluid to the brake master cylinder reservoir?
A:
You can only use Delco Supreme 11(R), GM P/N 12377967 (Canadian P/N 992667), or equivalent DOT-3 brake fluid from a clean, sealed brake fluid container.
By Bob
GM Specialist
01/11/2022
Q: What should you do first if the brake fluid is to be added to the master cylinder reservoir?
A:
You should clean the outside of the reservoir on and around the reservoir cap before removing the cap and diaphragm.
By Bob
GM Specialist
01/11/2022
Q: What is the installation procedure for the master cylinder reservoir?
A:
First, you need to install the master cylinder fluid level sensor and clean the master cylinder reservoir with denatured alcohol and dry it with filtered, non-lubricated compressed air. Then, please install the secondary and the primary master cylinder reservoir seal to the master cylinder reservoir. After installing the master cylinder reservoir, you also need to use a suitable drift from the inboard and the outboard side of the master cylinder, driving in the primary and secondary reservoir retaining pins. Finally, you should install the master cylinder assembly.
By Bob
GM Specialist
01/11/2022
Q: What is the recommended torque for the master cylinder secondary and primary brake pipe fitting?
A:
The recommended torque is 32Nm(24 lb-ft).
By Bob
GM Specialist
01/11/2022
Q: What's your next step if the brake fluid level is at or below the half-full point during routine fluid checks?
A:
You should inspect the brake system for wear and possible brake fluid leaks.
By Bob
GM Specialist
01/11/2022
Q: What is the recommended torque for the master cylinder nuts?
A:
The recommended torque is 25Nm(18 lb-ft).
By Bob
GM Specialist
01/11/2022
Q: What is important in the process of master cylinder bench bleeding?
A:
You should depress and release the primary piston as far as it will travel, a depth of about 25 mm (1 in), several times. Then, please observe the flow of fluid coming from the ports.
By Bob
GM Specialist
01/11/2022
Q: What is the removal procedure of the master cylinder reservoir?
A:
First, you need to use a suitable drift from the inboard and outboard side of the master cylinder to drive out the secondary and the primary reservoir retaining pin. Then, please remove the master cylinder reservoir and the secondary and primary master cylinder reservoir seals. Finally, you should remove the master cylinder fluid level sensor.
By Bob
GM Specialist
01/11/2022
Q: What should you do after disconnecting the master cylinder primary brake pipe fitting?
A:
You should cap the brake pipe fitting and plug the master cylinder outlet port to prevent brake fluid loss and contamination.
By Bob
GM Specialist
01/11/2022
See more FAQs (4)

FAQ for Other Repair Info

Q: How to remove the Power Vacuum Brake Booster?
A:
First, you need to remove the left side instrument panel insulator panel and lower the steering column assembly and support the column without disconnecting the steering column from the intermediate shaft. Then, please disconnect the brake pedal position sensor electrical connector, remove the vacuum Brake Booster pushrod retaining clip, disconnect the vacuum brake booster pushrod from the brake pedal pivot, and remove the vacuum brake booster pushrod bushing, the vacuum brake booster pushrod wave washer, the cross vehicle brace and disconnect the master cylinder fluid level sensor electrical connector. You also need to remove the master cylinder nuts and position aside the master cylinder and support it with heavy mechanics wire or equivalent. Then, please remove the air inlet grille panel, remove and position aside the surge tank without disconnecting the hoses, disconnect the vacuum brake booster check valve and hose assembly and position aside, install the J 22805-B to the vacuum brake booster and secure with the master cylinder nuts, use a flat-bladed tool to depress the locking tab toward the cowl, rotate the J 22805-B and vacuum brake booster counter-clockwise to release the vacuum brake booster from the bracket. Finally, you should pull the vacuum booster forward slightly and support the vacuum booster to access the booster pushrod retaining clip, compress the vacuum brake booster foam filter to access the vacuum brake booster retaining clip, disconnect the brake booster pushrod from the booster by releasing the retaining clip, remove the vacuum brake booster and remove the vacuum brake booster pushrod through the dust boot from inside of the vehicle, if necessary.
Q: What should you do if the brake pedal feels spongy?
A:
You should perform the conventional brake bleed procedure again.