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 MANUALSPONTIAC1987GRAND PRIX LE, 5.0 HREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESMECHANICAL - HYDRAULICBRAKE SYSTEM BLEEDINGSERVICINGMETERING VALVE
1987 Pontiac Grand Prix LE, 5.0 H
Metering Valve
1987 Pontiac Grand Prix LE, 5.0 HSECTION Metering Valve
- On some disc brake equipped vehicles, the metering section of combination valve must be held open before pressure bleeding.
- Hold metering valve open while pressure bleeding front brakes. To loosen front mounting bolt and install pressure bleeding tool on combination valve, valve stem should be fully extended or depressed.
NOTE:
Never reintroduce brake fluid that has been drained from hydraulic brake system or that has been allowed to stand in an open container for an extended period of time. Also, DO NOT
use fluid that contains a petroleum base. Petroleum based fluids will cause swelling and distortion of rubber parts in hydraulic 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.