Express 3/4 Ton Van V6-4.3L VIN W (1998)
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Tighten the inlet hose fitting to the power brake booster to 36 Nm (27 ft. lbs.).
6. Connect the outlet hose to the power brake booster.
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Tighten the outlet hose fitting to the power brake booster to 36 Nm (27 ft. lbs.).
7. Install the power steering fluid reservoir hose to the power brake booster.
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Tighten the power steering fluid reservoir hose fitting to the power brake booster to 36 Nm (27 ft. lbs.).
8. Install the brake master cylinder to the vehicle. Refer to Master Cylinder Replacement (Hydraulic Brake Booster).
9. Bleed the power steering system. Refer to Bleeding The Power Steering System.
Hydraulic Brake Booster Overhaul (Check Valve)
REMOVAL PROCEDURE
CAUTION:
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The accumulator contains compressed gas. Always use the proper tools and follow the recommended procedures or personal injury
may result. Do not apply heat to accumulator. Do not attempt to repair an inoperative accumulator. always replace an inoperative
accumulator with a new one. Dispose of an inoperative accumulator by drilling a 1/16 inch diameter hole through the end of the
accumulator can, opposite the O-ring.
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Push rod removal is not recommended. Improper staking of the push rod to the Hydroboost reaction piston can result in a loss of brakes. If the
rod or seals require service, the entire unit must be replaced.
1. Remove the bolts fastening the booster cover to the booster housing.
2. Separate the booster cover from the booster housing.
