Malibu L4-144 2.4L DOHC VIN T SFI (1998)
4. Position the motor pack onto the modulator, aligning the three motor pack gears with the modulator gears.
5. Install the motor pack to the modulator torx head screws.
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Tighten the torx head screws to 5 Nm (44 in. lbs.).
6. Install the gear cover onto the modulator with Torx head screws.
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Tighten the Torx head screws to 4 Nm (36 in. lbs.).
7. Install the Hydraulic Modulator assembly into the vehicle.
8. Perform the Motor Rehome Procedure.
9. Perform the Diagnostic System Check.
Brake Modulator Replacement
REMOVAL PROCEDURE
1. Remove the brake modulator assembly.
2. Remove the Torx head screws (5) attaching the gear cover (4).
3. Remove the gear cover (4).
4. Remove the four Torx head screws (6) attaching the motor pack (1) to the brake modulator (2).
5. Remove the motor pack (1) from the brake modulator (2).
6. Remove the Torx head screws that retain the proportioning valve.
7. Remove the proportioning valve.
INSTALLATION PROCEDURE
IMPORTANT: When replacing the ABS brake modulator, install the three gears in the same location on the replacement brake modulator. Refer
to "Brake Modulator Gear Replacement".
No repair of the ABS brake modulator is authorized. Replace the ABS brake modulator as an assembly.
1. Install the proportioning valve to the hydraulic modulator.
2. Install the Torx head screws that retain the proportioning valve to the hydraulic modulator.
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Tighten the Torx head screws to 12 Nm (106 in. lbs.).
IMPORTANT: A new gasket MUST be used when installing the Proportioning Valve.
3. With the ABS brake modulator positioned upside down, and the gears facing you, rotate each ABS brake modulator gear clockwise until
movement stops.
The procedure causes the following conditions:
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The pistons are positioned very close to the top of the modulator bore.