1999 Isuzu Trooper Change Brake Pads

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Your 1999 Isuzu Trooper came equipped with an excellent brake system. At the heart of this braking system are the brake pads. A set of worn-out brake pads on your Trooper will not make you safer than any other brake system available, so be sure to replace them when the need arises. You can service a set of worn-out brake pads at home, using a few simple tools.

Tools Used[edit]

Turkey baster
8-oz plastic container
Lug wrench
Floor jack
2 Jack stands
Large C-clamp
Heavy wire (optional)
Needle-nose pliers (optional)
Brake parts cleaner
Ling-free towels
Torque wrench
New brake fluid (optional)

Change Brake Pads[edit]

Removing the Brake Pads

  • Draw out about half the fluid from the brake master cylinder reservoir, using a turkey baster. Store the fluid in an 8- or 12-oz plastic container for later recycling and leave the reservoir cap loose. This will prevent fluid from spilling out as you seat the caliper piston later.
  • Loosen the lug nuts about three turns on the set of wheels containing the brake pads you are servicing (use a lug wrench).
  • Raise the front or rear wheels using a floor jack, depending on the set of pads you need to replace. Safely support the vehicle with a pair of jack stands under the vehicle's frame.
  • Finish removing the wheels and service one brake assembly at a time.
  • Position a large C-clamp over the brake caliper, with the clamp screw against the outer brake pad. Slowly tighten the C-clamp screw until the caliper piston, resting against the inner pad, bottoms out in its bore. If you are replacing the rear wheel pads, compress the piston just slightly and remove the C-clamp.
  • Unfasten the lower caliper mounting bolt with a ratchet and socket and slide the pin bolt out of the caliper. Swing the caliper up so that you can access the brake seating on the caliper mounting bracket. On rear brake assemblies, unfasten the lower and upper mounting bolts, lift the caliper up and secure it to the suspension with heavy wire.
  • Remove the outer and inner brake pads and make a note of the number and position of retainer clips, shims or plates that may come with your particular Trooper model.
  • Rotate the caliper piston clockwise with a pair of needle nose pliers until the piston seats completely into its bore, if you are servicing the rear brakes.

Installing the New Brake Pads

  • Spray the brake assembly with brake parts cleaner and wipe it clean with lint-free towels.
  • Install the inner and outer brake pads, retainer clips, shims or plates in the caliper bracket.
  • Lower the caliper over the bracket and insert the mounting bolt(s) through the caliper and caliper bracket mounting hole(s).
  • Tighten the caliper mounting bolt(s) to 32 foot-pounds (44 Nm), using a torque wrench.
  • Replace the pads on the opposite wheel assembly.
  • Tighten the reservoir of the brake master cylinder and pump the brake pedal several times to seat the new brake pads against the rotor.
  • Install back the wheels and the lug nuts that secure them.
  • Lower your Trooper, using the floor jack.
  • Add new brake fluid to the reservoir on the brake master cylinder, if necessary, to bring the level up to the “Full” mark, then replace the reservoir cap.
  • Operate the brake pedal to make sure it feels firm.