2008 Jeep Commander 4WD V6-3.7LFACTORY OEM SERVICE PROCEDURE

Disc Brake Caliper - Assembly







ASSEMBLY

Factory service manual diagram




CAUTION: Dirt, oil, and solvents can damage caliper seals. Insure assembly area is clean and dry.

1. Lubricate caliper pistons, piston seals and piston bores with clean, fresh brake fluid.

NOTE: Verify seal is fully seated and not twisted.

2. Install new piston seals (3) into caliper bores (2).
Factory service manual diagram




3. Lightly lubricate lip of new boot with silicone grease. Install boot on piston and work boot lip into the groove at the top of piston (3).
4. Stretch boot (2) rearward to straighten boot folds, then move boot forward until folds snap into place.
5. Install piston (3) into caliper bore and press piston down to the bottom of the caliper bore by hand or with hammer handle.
Factory service manual diagram




6. Seat dust boot in caliper (2) with Handle C-4171 (1) and Installer (3).
7. Install the second piston and dust boot.
8. Lubricate caliper mounting bolt bushings, boot seals and bores with Mopar brake grease or Dow Corning(R) G407 grease only.

CAUTION: Use of alternative grease may cause damage to the boots seals.

9. Install the boot seals into the caliper seal bores and center the seals in the bores.
10. Install mounting bolt bushings into the boot seals and insure seal lip is engaged into the bushing grooves at either end of the bushing.
11. Install caliper bleed screw.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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