Vibe L4-1.8L VIN L (2003)
11.3. If the lathe does not have a nor-directional finishing tool, use a sanding block and 150 grit aluminum oxide sandpaper in order to apply a
non-directional finish.
12. Remove the lathe from the vehicle.
13. Clean both sides of the rotor with denatured alcohol, or an equivalent approved brake cleaner.
14. Measure the brake rotor LRO. Refer to Brake Rotor Assembled Lateral Runout (LRO) Measurement. See: Testing and Inspection/Component
Tests and General Diagnostics/Brake Rotor Assembled Lateral Runout (LRO) Measurement
15. If the brake rotor LRO is greater than the specification, refer to Brake Rotor Assembled Lateral Runout (LRO) Correction. See: Brake Rotor
Assembled Lateral Runout (LRO) Correction Methods
16. If the brake rotor LRO is less than the specification, install the brake caliper.
17. Press the brake pedal several times in order to position the brake rotor.
18. Remove the wheel nuts.
19. Remove the J 45101-100.
20. Install the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
Brake Rotor Refinishing
Brake Rotor Refinishing
Tools Required
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J 42450-A Hub Cleaning Kit
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J41013 Rotor Resurfacing Kit
Important: DO NOT refinish the brake rotors in order to correct any of the following conditions:
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Brake noise, such as a growl or squeal
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Premature brake lining wear
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Superficial corrosion of the rotor braking surface
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Rotor discoloration
Refinish the brake rotors ONLY when one or more of the following conditions exist:
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Severe scoring of the rotor braking surface, the groove depth in excess of specification
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Brake pulsation that is caused by the following conditions:
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Lateral runout in excess of specification
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Brake rotor thickness variation in excess of specification
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Corrosion or pitting that is deeper than the rotor braking surface
Notice: Whenever the brake rotor has been separated from the wheel bearing flange, clean any rust or foreign material from the mating surface of the
rotor and flange with the J 42450 hub cleaning kit. Failure to do this may result in increased lateral runout of the rotor and brake pulsation.
1. Use the J 42450-A in order to clean the wheel bearing and the wheel bearing hub.
2. Use a micrometer in order to measure the thinnest point of the brake rotor. If the thinnest point of the brake rotor exceeds the brake rotor minimum
thickness, do NOT refinish the brake rotor. Replace the brake rotor.
3. Use the J 41013 or an equivalent tool in order to THOROUGHLY clean the rust from the brake rotor flange.
4. Refinish the brake rotor. Refer to the brake lathe manufacturer's operating instructions.
Important: Failure to obtain the best possible surface finish may cause poor braking.
5. After machining the rotor, use 120-grit aluminum oxide sandpaper and, if available, a non-directional rotor finisher in order to create a
non-directional braking surface.
6. Clean the braking surfaces with GM P/N 12377981, or with an equivalent brake parts cleaner.
