1. Reservoir cap
2. Reservoir
3. Brake booster
4. Master cylinder
5. Push rod
1.Run the engine for one or two minutes, and then stop it. If the pedal depresses fully the first time but gradually becomes higher when depressed succeeding times, the booster is operating properly, if the pedal height remains unchanged, If there is no change in pedal stroke, check valve, vacuum hose and booster need to be checked.
2.With the engine stopped, step on the brake pedal several times.Then step on the brake pedal and start the engine. If the pedal moves downward slightly, the booster is in good condition. If there is no change in pedal stroke, check valve, vacuum hose and booster need to be checked.
3.With the engine running, step on the brake pedal and then stop the engine.Hold the pedal depressed for 30 seconds. If the pedal height does not change, the booster is in good condition, If there is no change in pedal stroke, check valve, vacuum hose and booster need to be checked.
1.Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.Remove the battery and battery tray.(Refer to Engine Electrical System - "Battery")
3.Remove the air duct and air cleaner assembly.(Refer to Engine Mechanical System - "Air Cleaner")
4.Remove the master cylinder.(Refer to Brake System - "Master Cylinder")
5.Remove the fixing clip and the vacuum hose (A) from the brake booster.
6.Disconnect the brake booster vacuum pressure sensor connector (A).
7.Remove the snap pin (B) and the clevis pin (A).
8.Remove the brake booster (B) after loosening the mounting nuts (A).
Tightening torque :16.7 - 25.5 N.m (1.7 - 2.6 kgf.m, 12.3 - 18.8 lb-ft)
1.Inspect the vacuum hose.
2.Check the boot for damage.
1.Installation is the reverse of removal.
• Before installing the pin, apply the grease to the joint pin.
• Use a new snap pin whenever installing.
2.After installation, bleed the brake system.(Refer to Brake System - "Brake Bleeding Procedures")
3.Check the brake oil leakage and pedal operating condition.
Hyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual: Release Residual Pressure in Fuel Line
- Release Residual Pressure in Fuel Line
• There may be some residual pressure even after "Release Residual
Pressure in Fuel Line" work, so cover the hose connection with a shop
towel to prevent residual fuel from spilling out before disconnecting
any fuel connection.
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Hyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual: Components and Components Location
- Component Location (1)
1. Integrated body control unit (IBU)2. Interior antenna 23. Door outside handle4. Interior antenna 15. Buzzer6. Door antenna
- Component Location (2)
1. Bed open switch2. Rear bumper antenna3. Liftgate open switch
...