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 ASSEMBLYREASSEMBLY
1997 Pontiac Grand Prix GTP, 4D Sedan
Abs Modulator/Motor Pack Assembly: Reassembly
1997 Pontiac Grand Prix GTP, 4D SedanSECTION Reassembly
- To assemble master cylinder and ABS modulator, lubricate NEW transfer tube "O" rings and NEW through-bolt "O" rings with clean brake fluid. Install NEW transfer tubes with "O" rings into ABS modulator. Install NEW through-bolt "O" rings into master cylinder and ABS modulator.
- Clamp mounting flange of master cylinder in a soft-jawed vise. Assemble master cylinder to ABS modulator. Ensure transfer tubes and "O" rings are not damaged during assembly. Tighten ABS modulator-to-master cylinder through-bolts to specification. See TORQUE SPECIFICATIONS .
- Place master cylinder and ABS modulator assembly upside-down with gears facing you, rotate each gear counterclockwise until movement stops. Rotating gears counterclockwise will position pistons very close to top of ABS modulator bore, making brake bleedingeasier.
- To complete assembly, reverse disassembly procedure. Ensure motor pack gears are aligned with ABS modulator gears. Bleed brake system. See BLEEDING BRAKE SYSTEM .
RENDER: 1.0x
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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.