what causes my Toyota Tacoma N300 (2016-Present) brakes to feel spongy

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and securely elevated with jack stands.
• Disconnect the battery for safety.

2. Check and Replenish Brake Fluid

• Tools Required: Brake fluid, funnel, rag
• Inspect the brake fluid level; if low, fill with the appropriate type of brake fluid (usually DOT 3 or DOT 4).
• Clean any spills with a rag to prevent damage to paint.

3. Bleed the Brake Lines

• Tools Required: Brake bleeder kit, wrench, clear tubing, brake fluid
• Attach the clear tubing to the bleeder valve on the brake caliper.
• Have an assistant pump the brake pedal several times and hold it down.
• Open the bleeder valve and allow fluid and air to escape until only fluid flows out.
• Close the bleeder valve before your assistant releases the brake pedal.
• Repeat for each wheel, checking fluid levels in the master cylinder frequently.

4. Inspect and Replace Worn Components

• Tools Required: Socket set, torque wrench, brake pads, rotors (if needed)
• Remove the wheel to access the brake components.
• Inspect brake pads for thickness; replace if worn down to 3mm or less.
• Check rotors for scoring or warping; replace if necessary.
• Reassemble the brakes and torque bolts to manufacturer specifications.

5. Verify Brake Booster Function

• Tools Required: Vacuum gauge (if needed)
• Start the engine and listen for hissing sounds indicating a vacuum leak.
• Test the brake booster by pressing the brake pedal; it should feel firm and responsive.