The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

2018 Outlander GT: Brake pedal pulsation and steering wheel vibration

0

Mike T. · rep 0 · May 25, 4:08 AM · 1 replies · solved · Question

Vehicle: 2018 Mitsubishi Outlander GT

Hey everyone, I've got a 2018 Mitsubishi Outlander GT with about 60k miles on it. Lately, when I apply the brakes, especially at higher speeds, I feel a distinct pulsation through the brake pedal and a vibration in the steering wheel. It's getting pretty annoying and I'm worried it might be a safety issue.

I had the pads and rotors replaced about 20k miles ago. Could they be warped already? Or is there something else I should be looking at? Any advice on what might be causing this would be great. Thanks!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 4:08 AM

0

ClearTheCode admin answer:

Brake pulsation and steering wheel vibration during braking are common symptoms that typically point to issues within the braking system. Given your recent brake service, it's important to diagnose the root cause accurately.

Possible Causes:

  1. Warped Brake Rotors: This is the most common cause. Rotors can warp due to excessive heat from heavy braking or improper installation/torqueing of lug nuts, leading to uneven surfaces that cause pulsation.
  2. Uneven Brake Pad Wear: If pads wear unevenly, or material transfer occurs, it can mimic warped rotors.
  3. Sticky Brake Calipers: A caliper that isn't releasing properly can cause excessive heat, leading to rotor warping, and can also pull the vehicle to one side.
  4. Suspension Components: Worn wheel bearings, tie rods, or ball joints can amplify vibrations, though they usually present other symptoms too.
  5. Tire/Wheel Issues: Imbalanced tires or bent wheels can cause vibration, but typically it's constant, not just during braking.

When to See a Shop:

It's crucial to have this inspected by a qualified technician promptly, as braking issues are safety-critical. Here's what they should check:

  1. Inspect Rotors: Measure rotor runout and thickness variation. If warped beyond specification, replacement or resurfacing (if thick enough) is needed.
  2. Check Brake Pads: Examine for uneven wear or glazing.
  3. Evaluate Calipers: Ensure calipers slide freely and pistons retract correctly. Lubricate guide pins if necessary.
  4. Inspect Wheel Bearings and Suspension: Check for any play in the wheel bearings, tie rod ends, and ball joints.
  5. Torque Lug Nuts: Ensure lug nuts are tightened to factory specifications using a torque wrench. Improper torque can induce rotor warping.

While no specific OBD codes are typically associated with warped rotors, a technician might check for ABS/traction control codes if the issue is severe enough to affect those systems, though it's less likely.

Menu

Help & account