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Jeep Cherokee 1988 Quick Start Manual
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Jeep Cherokee 1988 Quick Start Manual

Brake system bleeding
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1988 BRAKES
Jeep - Brake System Bleeding
Cherokee, Comanche, Grand Wagoneer, Wagoneer, Wrangler
BRAKE SYSTEM BLEEDING
Hydraulic system bleeding is necessary any time air has been
introduced into system. Bleed brakes at all 4 wheels if master
cylinder lines have been disconnected or master cylinder has run dry.
Bleed brakes with vacuum bleeding equipment, pressure bleeding
equipment or by manually pumping brake pedal while using bleeder
tubes. Always bleed brake lines in sequence. See BLEEDING SEQUENCE
table.
MASTER CYLINDER BLEEDING
Bench Bleeding
1) Master cylinder must be bled before installation to
prevent excessive amounts of air from entering the brake system,
creating poor brake operation.
2) Place master cylinder in soft-jawed vise. DO NOT tighten
vise enough to damage master cylinder. Install bleeder tubes in both
outlets of master cylinder. See Fig. 1.
Fig. 1:
Bleeding Master Cylinder
Courtesy of American Motors/Jeep Corp.
3) Fill master cylinder with clean brake fluid that meets DOT
3 specifications. Ensure that the end of bleeder tubes are submerged
BRAKE SYSTEM BLEEDING
1988 Jeep Cherokee

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Summary of Contents for Jeep Cherokee 1988

  • Page 1 BRAKE SYSTEM BLEEDING 1988 Jeep Cherokee 1988 BRAKES Jeep - Brake System Bleeding Cherokee, Comanche, Grand Wagoneer, Wagoneer, Wrangler BRAKE SYSTEM BLEEDING Hydraulic system bleeding is necessary any time air has been introduced into system. Bleed brakes at all 4 wheels if master cylinder lines have been disconnected or master cylinder has run dry.

  • Page 2: Hydraulic Control Valves

    (J-23709) during bleeding procedure. See Figs. 2 and 3. Remove valve retainer once brake bleeding procedure is complete. CAUTION: DO NOT use rigid clamp to position valve stem. Damage to the valve assembly may result causing brake failure. Fig. 2: Positioning Hold Off Valve Courtesy of American Motors/Jeep Corp.

  • Page 3: Pressure Bleeding

    Fig. 3: Positioning Hold Off Valve Courtesy of American Motors/Jeep Corp. VACUUM BLEEDING Fill master cylinder. Install vacuum bleed equipment to first bleeder valve to be serviced. Open bleeder valve 3/4-1 turn. Depress vacuum pump and pull fluid into reservoir jar. Bleed each bleeder valve in sequence.

  • Page 4: Manual Bleeding

    NOTE: When bleeding brake system manually, ensure bleeder valve is closed when brake pedal is released. Fig. 4: Wheel Cylinder Bleeding Procedure Courtesy of American Motors/Jeep Corp. BLEEDING SEQUENCE...
  • Page 5 Before bleeding system, exhaust all vacuum from power unit by depressing brake pedal several times. Bleed master cylinder (if equipped) with bleeder screws. Bleed slave cylinder on vehicles equipped with remote mount power assist units. Bleed wheel cylinders and calipers in sequence. See BLEEDING SEQUENCE table. BLEEDING SEQUENCE TABLE ¡...