Should I change the front rotors and pads?

Tiny
CINDY SCHOPPET
  • MEMBER
  • 2017 HYUNDAI SONATA
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 55,000 MILES
I had the brake pads changed at 50,000. But there is a little shaking on steep downhills. Should I have the rotors and pads changed again or will just replacing the rotors be okay?
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Saturday, February 20th, 2021 AT 5:40 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

If you are feeling a shaking in the steering wheel, chances are it is the rotors. In most cases, I like to replace both at the same time. However, since you just replaced the pads, I feel it should be okay to simply replace the rotors.

For your reference, here is a link and video that explains how brakes and rotors are replaced. Note: You can also replace the pads at the same time if you decide to

https://youtu.be/7zjHSFVangI

and

https://www.2carpros.com/articles/how-to-replace-front-brake-pads-and-rotors-fwd

_______________________________

Here are the directions specific to your vehicle for rotor replacement.

2017 Hyundai Sonata L4-2.4L
Front Disc Brake - Repair Procedures
Vehicle Brakes and Traction Control Disc Brake System Service and Repair Procedures Front Disc Brake - Repair Procedures
FRONT DISC BRAKE - REPAIR PROCEDURES
Removal
Raise the vehicle, and make sure it is securely supported.
Remove the wheel cap(A).

Be careful not to damage to the wheel cap (A) when removing the it.
Remove the front wheel and tire (A) from front hub.
Tightening torque:
88.2 107.8 N.m (9.0 11.0 kgf.m, 65.0 79.5 lb-ft)

Be careful not to damage to the hub bolts when removing the front wheel and tire (A).
Loosen the guide rod bolt (B) and pivot the caliper (A) up out of the way.
Tightening torque:
21.6 31.4 N.m (2.2 3.2 kgf.m, 15.9 23.1 lb-ft)

Replace pad shim, pad retainers (C) and brake pads (B) in the caliper bracket (A).

Loosen the hose eyebolt (C) and caliper mounting bolts (B), then remove the front caliper assembly (A).
Tightening torque:
Brake hose to caliper(C):
24.5 29.4 N.m (2.5 3.0 kgf.m, 18.1 21.7 lb-ft)
Caliper assembly to knuckle(B):
78.5 98.1 N.m (8.0 10.0 kgf.m, 57.9 72.3 lb-ft)

Remove the front brake disc by loosening the screws (A).

Replacement
Loosen the guide rod bolt (B) and pivot the caliper (A) up out of the way.
Tightening torque:
21.6 31.4 N.m (2.2 3.2 kgf.m, 15.9 23.1 lb-ft)

Replace pad shim (D), pad retainers (C) and brake pads (B) in the caliper bracket (A).

Use a SST (09581-2T100) when installing the brake caliper assembly.

Do not hit piston end by hammer or prying directly against piston face with screwdriver to push in piston.
Down the caliper body(A) then tighten the guide rod bolt(B).
Tightening torque:
21.6 31.4 N.m (2.2 3.2 kgf.m, 15.9 23.1 lb-ft)

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed. Joe
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Saturday, February 20th, 2021 AT 9:06 PM

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