HHR L4-2.4L (2010)
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Brake Proportion Valve Replacement (See: Brake Proportioning/Combination Valve/Service and Repair), if equipped
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Brake Pressure Modulator Valve Replacement (With JL4) (See: Hydraulic Control Assembly - Antilock Brakes/Service and Repair/Brake
Pressure Modulator Valve Replacement (With JL4))Brake Pressure Modulator Valve Replacement (With JL4, LNF) (See: Hydraulic
Control Assembly - Antilock Brakes/Service and Repair/Brake Pressure Modulator Valve Replacement (With JL4)), if equipped
4. If the brake fluid was NOT contaminated with an oil-based or a silicone-based substance, but WAS contaminated with water or dirt, rust,
corrosion, and/or brake dust, replace the brake master cylinder reservoir cap diaphragm which may have allowed the moisture or particles to enter
the hydraulic system.
5. Fill the brake master cylinder reservoir to the maximum-fill level with GM approved or equivalent DOT-3 brake fluid from a clean, sealed brake
fluid container.
6. Pressure bleed the hydraulic brake system. Begin the procedure with the pressure bleeder reservoir filled to the maximum-fill level with the correct
brake fluid as indicated. Refer to Hydraulic Brake System Bleeding (Manual) (See: )Hydraulic Brake System Bleeding (Pressure) (See: ).
