Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC1997GRAND PRIX GTP, 4D SEDANREPAIR AND DIAGNOSISBRAKESANTI-LOCK BRAKE SYSTEM WITH TRACTION CONTROL SYSTEM - ABS-VIOVERHAULABS MODULATOR/MOTOR PACK ASSEMBLYDISASSEMBLY
1997 Pontiac Grand Prix GTP, 4D Sedan
Abs Modulator/Motor Pack Assembly: Disassembly
1997 Pontiac Grand Prix GTP, 4D SedanSECTION Disassembly
- With ABS modulator/motor pack and master cylinder assembly removed from vehicle, remove as much fluid as possible from master cylinder. Turn ABS modulator/motor pack and master cylinder assembly upside down. Remove 6 Torx head screws attaching gear cover to bottom of ABS modulator/motor pack assembly.
- Remove 4 Torx head screws attaching motor pack to ABS modulator. Remove motor pack. See Fig 1. DO NOT drop motor pack. If motor pack is dropped, replacement is necessary.
- Remove 2 ABS modulator-to-master cylinder through bolts and "O" rings. Separate master cylinder from ABS modulator. Remove 2 transfer tubes and "O" rings from master cylinder or ABS modulator. See Fig 1. If ABS modulator is being replaced, ensure gears are installed in same location on replacement ABS modulator. See ABS/TCS MODULATOR GEARS .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.