FAQ for Brake Booster Repair
Q: What should you do before replacing the power brake booster vacuum sensor?
A:
You should turn the ignition switch to the OFF position, apply the brake pedal several times and disconnect the power brake booster vacuum sensor electrical connector.
By BobGM Specialist
01/11/2022 Q: What should you do before replacing the Power Brake Booster (Adjustable Pedals)?
A:
You should apply the parking brake, deplete the power reserve in the brake booster, remove and position the brake master cylinder aside and support it with heavy mechanics wire or equivalent.
By BobGM Specialist
01/11/2022 Q: How many nuts does the brake booster have?
A:
The brake booster has a total of 4 nuts.
By BobGM Specialist
01/11/2022 Q: What is the recommended type of brake fluid when adding fluid to the brake master cylinder reservoir?
A:
You can use only 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 BobGM Specialist
01/11/2022 Q: How many nuts does the Master Cylinder have?
A:
The Master Cylinder has a total of 2 nuts.
By BobGM Specialist
01/11/2022 Q: What is the recommended torque when you tighten the master cylinder nuts?
A:
You can tighten the nuts to 33 Nm (24 lb-ft).
By BobGM Specialist
01/11/2022 Q: What should you do before replacing the Power Vacuum Brake Booster (Adjustable Pedals)?
A:
You should apply the parking brake and deplete the vacuum reserve in the vacuum booster.
By BobGM Specialist
01/11/2022 Q: What is the recommended torque when you tighten the brake booster pushrod retainer bolt?
A:
You can tighten the bolt to 10 Nm (89 lb in).
By BobGM Specialist
01/11/2022 Q: How do you flush the hydraulic brake system?
A:
You can inspect the brake fluid, inspect the master cylinder reservoir cap diaphragm and the reservoir-to-master cylinder grommets for swelling, replace the brake master cylinder reservoir cap diaphragm, fill the brake master cylinder reservoir to the maximum-fill level and pressure bleed the hydraulic brake system.
By BobGM Specialist
01/11/2022 Q: What can be used for installing the power brake booster vacuum sensor to the brake booster?
A:
You can use a small amount of denatured alcohol as an assembly aid for installing the power brake booster vacuum sensor to the brake booster.
By BobGM Specialist
01/11/2022 See more FAQs (7)