Wrangler 4WD L4-150 2.5L VIN P MFI (1998)
Vacuum Brake Booster: Service and Repair
REMOVAL
1. Remove combination valve and master cylinder.
2. Disconnect vacuum hose from booster check valve.
Push Rod & Clip
3. Remove retaining clip that secures booster push rod to brake pedal and slide the rod off the pin.
Booster Mounting Nuts
4. Remove four nuts attaching booster to front cowl panel.
5. In engine compartment, slide booster studs out of cowl panel, and remove the booster from engine compartment.
6. Remove dash seal from booster.
INSTALLATION
1. Clean the booster mounting surface.
2. Install dash seal on booster.
3. Align and position booster on the front cowl panel.
4. In passenger compartment, install nuts that attach booster to dash panel. Tighten nuts just enough to hold booster in place.
5. Lubricate the pedal pin and bushing with Mopar multi-mileage grease. Then slid the booster push rod onto brake pedal pin and secure with
retaining clip.
6. Tighten booster mounting nuts to 37 Nm (27 ft. lbs.).
7. Connect vacuum hose to booster check valve.
8. Install master cylinder and combination valve.
9. Top off master cylinder fluid level and bleed base brakes.
