Mopar 5017973AA Brake Master Cylinder

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When installing the master cylinder, bench bleed it first by mounting it in a vise and attaching a pair of master cylinder bleeder tubes to the outlet ports. Fill the reservoir with brake fluid and slowly push the pistons into the master cylinder to expel air. Repeat this procedure until no more air bubbles are present. Remove the bleed tubes and install plugs in the open ports. Install the master cylinder over the studs on the power brake booster and tighten the nuts finger-tight. Thread the brake line fittings into the master cylinder and tighten them securely. Fill the master cylinder reservoir with fluid and bleed the master cylinder and the rest of the brake system. Reinstall any components that were removed and re-check the brake fluid level before testing the brake system.