06 Yukon Brake Problem

corys510 · March 8, 2007

Hi this is my first post. I have an 06 Yukon with 21,xxx miles on it. In December my brakes started to sqeal so I took it into the dealer he told me it was because of brake dust and it was normal , it was due to the weather and would go away. In January I still had the problem I took it in again they told me GM doesnt cover brakes, but turned the rotors and used some anti squeek on the pads. In february my brakes still make the same noise I took it in they said they would call GM to see what else they could do, GM told them its a natural characteristic of the vehichle and they all do that due to the brake pad they use. My dealer turned the rotors AGAIN and used some "special" anti squeek that GM suggested to them. Well needless to say the brakes still squeek/sqeal what ever. Does anyone out there have a fix for this? Thanks in advance

TBLAZER · March 10, 2007

Hi this is my first post. I have an 06 Yukon with 21,xxx miles on it. In December my brakes started to sqeal so I took it into the dealer he told me it was because of brake dust and it was normal , it was due to the weather and would go away. In January I still had the problem I took it in again they told me GM doesnt cover brakes, but turned the rotors and used some anti squeek on the pads. In february my brakes still make the same noise I took it in they said they would call GM to see what else they could do, GM told them its a natural characteristic of the vehichle and they all do that due to the brake pad they use. My dealer turned the rotors AGAIN and used some "special" anti squeek that GM suggested to them. Well needless to say the brakes still squeek/sqeal what ever. Does anyone out there have a fix for this? Thanks in advance

Let me guess,it's the rear brakes,right?

The most common brake squeak on the full size SUV comes from the rear brakes,have the dealer check the rotor lateral runout,if out of spec's it will cause the brake pads to squeak.The rotors have been reface twice so request that they correct the lateral rounout and install new rotors,rotors are cover under warranty. Here is the procedure from the GM service manual.

Brake Rotor Lateral Runout Check (Rear)

Tools Required

J 8001 Dial Indicator Set

Remove the tire and the wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

Tighten the wheel nuts so that the rotor is tight against the axle flange.

Clean the rotor surface.

Install the J 8001 so that the dial indicator button contacts the rotor surface about 13 mm (0.5 in) from the outer edge.

Push in the rear axle while setting the dial indicator to zero.

While maintaining the inward pressure, turn the rotor one complete revolution.

Observe the lateral runout on the dial indicator. The total indicator runout (TIR) should not exceed 0.10 mm (0.004 in).

In some cases, excessive lateral runout can be rectified by indexing the rotor. Move the rotor one or two wheel bolt positions from the original position.

If the lateral runout still exceeds 0.10 mm (0.004 in), check the rear axle shaft flange for excessive lateral runout, or looseness.

Remove the brake rotor. Refer to Brake Rotor Replacement - Rear .

Reposition the J 8001 so that the button contacts the surface of the axle shaft flange.

Push the axle shaft flange inward while turning the axle shaft flange one full revolution.

Continue pushing in the axle shaft flange while setting the dial indicator to zero.

While maintaining the inward pressure, rotate the axle shaft flange one complete revolution.

Note the lateral runout.

If the axle shaft flange lateral runout exceeds 0.05 mm (0.002 in), replace the rear axle shaft. Refer to Rear Axle Shaft Replacement in Rear Drive Axle.

If the axle shaft flange lateral runout is within specifications, refinish or replace the rotor. Refer to Brake Rotor Refinishing .