brakes
Brake Caliper Slide Pins
for 2017 Toyota Corolla 1.8L I4 · FWD
Difficulty
Easy
Time
30 min
Tools
9
Steps
12
This procedure covers cleaning, inspecting, and lubricating brake caliper slide pins to ensure proper caliper movement and even brake pad wear.
Warnings
⚠️This is a SAFETY-CRITICAL brake system repair. Improper servicing can result in brake failure, causing serious injury or death. If you are uncertain about any step, seek professional assistance immediately.
⚠️Never work under a vehicle supported only by a jack. Always use properly rated jack stands on solid, level ground.
⚠Do not allow the brake caliper to hang by the brake hose. This can damage the hose and cause brake failure. Support the caliper with wire or a stand.
⚠Do not mix lubricants. Use only silicone-based brake grease on slide pins. Petroleum-based products will damage rubber boots.
ℹ️This procedure covers servicing slide pins without replacing brake pads. If pads are worn below 3mm, they should be replaced during this service.
Tools required
Floor jackEssential
Jack standsEssential
Lug wrench or 21mm socketEssential
Torque wrenchEssential
12mm socket or wrenchEssential
Wire brush
Clean lint-free ragsEssential
Brake parts cleanerEssential
C-clamp or brake caliper piston tool
Parts
- Silicone brake grease (high-temperature) × 1 — Use synthetic brake grease rated for caliper slide pins
Preparation
- Park vehicle on level, solid ground and engage parking brake
- Loosen wheel lug nuts while vehicle is on the ground, but do not remove
- Safely raise vehicle and support on jack stands at manufacturer-specified jacking points
- Remove wheel completely and set aside
- Inspect brake system for fluid leaks, damaged hoses, or worn pads before proceeding
Procedure
- 1Remove caliper slide pin boltsLocate the two caliper slide pin bolts on the rear of the caliper (facing the vehicle centerline). These are the smaller bolts that allow the caliper to slide. Using a 12mm socket or wrench, remove both slide pin bolts completely. Keep these bolts together as they will be reused.Torque specCaliper Slide Pin Bolts35 Nm (26 lb-ft)
- 2Remove caliper from bracketCarefully lift the caliper assembly up and away from the brake rotor and bracket. The caliper will still be connected to the brake hose. Support the caliper using mechanics wire, a bungee cord, or place it on a secure stand to prevent stress on the brake hose. Do not let it hang freely.⚠Never allow the caliper to hang by the brake hose alone. This can cause internal hose damage and brake failure.
- 3Remove slide pins from bracketThe slide pins remain in the caliper bracket. Pull each slide pin straight out of its bore in the bracket. If the pins are stuck, gently twist while pulling. Note the orientation and position of the rubber dust boots on each pin.
- 4Inspect slide pins and bootsCarefully examine each slide pin for scoring, corrosion, pitting, or wear. Inspect the rubber dust boots for tears, cracks, or deterioration. If any pins are damaged or boots are torn, these components must be replaced before reassembly. Minor surface oxidation can be cleaned.⚠Damaged slide pins or torn boots will cause uneven braking and premature pad wear. Replace any damaged components.
- 5Clean slide pins and boresUse brake parts cleaner and a clean lint-free rag to thoroughly remove all old grease from the slide pins. Clean the slide pin bores in the bracket using brake cleaner and a rag. For stubborn deposits in the bores, use a wire brush carefully to avoid damaging the bore surface. Ensure all surfaces are completely clean and dry before proceeding.
- 6Apply fresh silicone brake greaseApply a thin, even coat of silicone brake grease to the entire smooth shaft of each slide pin. Do not over-apply; excess grease will attract dirt. Ensure the grease covers the full length that contacts the bore, but avoid getting grease on the threaded portion or rubber boots.⚠Use only silicone-based brake grease. Petroleum-based greases will swell and destroy the rubber dust boots.
- 7Reinstall slide pinsInsert each lubricated slide pin back into its bore in the caliper bracket, ensuring the rubber dust boot seats properly in both the groove on the pin and the bracket. The pin should slide smoothly in and out with light finger pressure. If resistance is felt, remove the pin, check for debris, and relubricate.
- 8Reinstall caliperIf you compressed the caliper piston to make removal easier, ensure it is still retracted. Position the caliper back over the brake pads and rotor, aligning the slide pin bolt holes. Ensure brake pads are properly seated in the bracket before fully installing the caliper.
- 9Install and torque slide pin boltsThread both caliper slide pin bolts in by hand first to ensure proper thread engagement. Apply a small amount of silicone brake grease to the slide pin bolt threads and contact surfaces as specified. Using a torque wrench, tighten both slide pin bolts to exactly 35.0 Nm (26 lb-ft) in a crisscross pattern.⚠️Proper torque is critical for brake safety. Under-torquing can cause bolts to loosen; over-torquing can damage threads or cause bolt failure.Torque specCaliper Slide Pin Bolts35 Nm (26 lb-ft)
- 10Verify caliper movementWith the caliper installed, use a large screwdriver or pry bar to gently push the caliper back and forth on the slide pins. The caliper should move smoothly with minimal resistance. If binding is present, remove the caliper and re-inspect the slide pins and lubrication.
- 11Reinstall wheelPlace the wheel back onto the hub, ensuring it seats flush. Thread all lug nuts on by hand first. Using a torque wrench, tighten lug nuts to 140.0 Nm (103 lb-ft) in a star pattern to ensure even seating.⚠️Always torque lug nuts in a star pattern to prevent wheel runout and potential wheel detachment.Torque specWheel Lug Nuts140 Nm (103 lb-ft)
- 12Repeat for remaining wheelsLower the vehicle, move to the next wheel, and repeat the entire procedure for each brake caliper requiring service. Front and rear calipers on this vehicle use the same slide pin specifications.
Reassembly
- After all wheels are serviced and reinstalled, lower the vehicle completely to the ground
- With the vehicle still in park or gear, pump the brake pedal several times until it feels firm and normal
- Check brake fluid level in the master cylinder reservoir and top off with DOT 3 brake fluid if needed
- Perform a final torque check on all wheel lug nuts with the vehicle on the ground
Verification
- Before driving, pump the brake pedal until firm resistance is felt. The pedal should not sink to the floor
- Perform a low-speed brake test in a safe area to verify normal braking function and absence of pulling to one side
- Listen for any unusual noises during braking that might indicate improper reassembly
- After the first 50-100 miles, re-check all lug nuts for proper torque
- Verify that brake warning lights are not illuminated on the dashboard