Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 296 (DISC BRAKES)OVERHAULCALIPER (FRONT)ASSEMBLY
2004 Toyota Matrix XR, FWD, Standard
Caliper (Front): Assembly
2004 Toyota Matrix XR, FWD, StandardSECTION Assembly
WARNING: This page is about a different car, the 2004 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Dirt, oil, and solvents can damage caliper seals. Ensure assembly area is clean and dry.
- Lubricate caliper pistons, piston seals, and piston bores with clean, fresh brake fluid.
- Install new piston seals into caliper bores. See Fig 1
.NOTE: Verify seal is fully seated and not twisted.
- Lightly lubricate lip of new boot with silicone grease. Install boot on piston and work boot lip into the groove at top of piston.
- Stretch boot rearward to straighten boot folds then move boot forward until folds snap into place.
- Install piston into caliper bore and press piston down to the bottom of the caliper bore by hand or with hammer handle. See Fig 2 .
- Seat piston dust boot using Handle (C-4171) and appropriate installer. See Fig 3
.
- HD 56-mm caliper - Installer (C-4340).
- LD 54-mm caliper - Installer (C-3716-A).
- Install the second caliper piston and boot.
- Lubricate caliper mounting bolt bushings, boot seals and bores with Mopar brake grease or Dow Corning(R) 807 grease only.CAUTION: Use of alternative grease may cause damage to the boots seals.
- Install the boot seals into the caliper seal bores and center the seals in the bores. See Figure .
- Install mounting bolt bushings into the boot seals and ensure seal lip is engaged into the bushing grooves at either end of the bushing.
- Install caliper bleed screw.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.