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Home/Cars/Ram/1500/DT (2019-Present)/how to fix the brakes on my Ram 1500 DT (2019-Present) that go to the floor

how to fix the brakes on my Ram 1500 DT (2019-Present) that go to the floor

Ram 1500 DT (2019-Present)

Error Codes
Severity: criticalDifficulty: medium2-4 hours
4 min read
613 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to fix the brake pedal sinking issue in 2019-Present Ram 1500 DT. Step-by-step guide with diagnostic steps and repair instructions.

Component
Brakes
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical or hydraulic systems.
  • ⚠Always use jack stands when the vehicle is raised to prevent accidents.

Symptoms

  • •Brake pedal sinks to the floor when pressed
  • •Soft or spongy brake feel
  • •Brake warning light illuminated on the dashboard
  • •Possible fluid leak under the vehicle
  • •Reduced braking performance or inability to stop effectively

Diagnostic Steps

  1. 1Inspect brake fluid level in the master cylinder reservoir.
  2. 2Check for visible brake fluid leaks around brake lines, calipers, and wheel cylinders.
  3. 3Inspect brake lines and hoses for any signs of damage or corrosion.
  4. 4Perform a brake fluid pressure test to check for leaks in the system.
  5. 5Inspect the brake master cylinder for internal failure by checking for fluid bypassing.
  6. 6Check brake pads and rotors for wear or damage, ensuring they are not contributing to the issue.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a level surface and the parking brake is engaged.
  • Disconnect the battery to ensure safety while working on brake components.

2. Inspect and Repair Brake Lines

  • Sub-steps:
    • Raise the vehicle using a jack and support with jack stands.
    • Visually inspect all brake lines and hoses for signs of leaks or damage.
    • Replace any damaged brake lines or hoses using an appropriate brake line cutting tool and flaring tool for new lines if necessary.

Tools Required:

  • Jack and jack stands
  • Brake line cutting tool
  • Flaring tool (if replacing lines)

3. Check and Replace Brake Master Cylinder (if necessary)

  • Sub-steps:
    • Disconnect the brake lines from the master cylinder using a line wrench.
    • Unbolt the master cylinder from the brake booster.
    • Install the new master cylinder by reversing the disassembly steps, ensuring all connections are tight.

Tools Required:

  • Line wrench
  • Socket set

4. Bleed the Brake System

  • Sub-steps:
    • Refill the master cylinder reservoir with new brake fluid (DOT 3 or DOT 4 as specified by the manufacturer).
    • Start bleeding the brakes from the furthest brake caliper from the master cylinder to the nearest one (usually right rear, left rear, right front, left front).
    • Use a brake bleeder kit or have an assistant pump the brake pedal while you open and close the bleeder valve on each caliper to remove air.

Tools Required:

  • Brake bleeder kit
  • Wrench for bleeder valves

Verification

After completing the repair, verify that the issue has been resolved:

  • Test the affected component to ensure it functions correctly
  • Check for any error codes or warning lights
  • Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • Jack and jack stands
  • Brake line cutting tool
  • Flaring tool
  • Line wrench
  • Socket set
  • Brake bleeder kit

Parts Required

  • Brake master cylinder (if needed)
  • Brake lines or hoses (if damaged)

Additional Information

Component

Brakes

Repair Time

2-4 hours

Difficulty

medium

Severity

critical

Tools

6 items

Parts

2 items

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