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Brakes, suspension & tires GMC Acadia 2007 - 2013 Petrol 3.6 V6

OnDemand step-by-step maintenance & repair BETA

GMC Acadia 2007 - 2013  | 3.6 V6 Brakes, suspension & tires

  • time 15 to 30 minutes
  • difficulty 3
Start with the front wheels
With the wheel off the ground, check for wear in the wheel hub bearings by grasping the wheel and trying to rock it. A very slight play may be felt. That's okay, but if the movement is excessive, you should seek further advice
Now remove the wheel
Check condition of the brake discs. Some light scoring is normal on the area in contact with the brake pads, but if heavy scoring and/or cracks found on the disc or around the wheel bolt holes, the disc must be replaced. ALWAYS replace both front discs and pads
Now locate the brake pads. There are two, one on each side of the disc. Locate the brake pad's wearing surface - it's the wear material that is pressed against the brake disc to slow the vehicle when the brake pedal is applied
Using a ruler, measure the approximate thickness of the remaining wear material on the brake pad. If it is less than 1/8-inch all front pads will need to be replaced
Virtually all cars have this inspection window in the brake caliper body, you can usually see the brake pad thickness from here
Now quickly check all the brake lines, check for any leaks, also inspect the driveaxle boots for loose clamps, cracks or signs of leaking lubricant. Seek advice should you detect a problem. Replace the wheel and repeat on the other side
It is a similar procedure with the rear wheels. Check for wheel bearing movement, then remove the wheel
Check the condition of the rear brakes
If your car has rear drum brakes, measure the brake shoe wear thickness. If the lining is bonded to the brake shoe, measure the lining thickness (A) from the outer surface to the metal shoe, as shown here; if the lining is riveted to the shoe, measure from the lining outer surface to the rivet head. If it is less than 1/8 inch - All rear shoes need replacement
Check for fluid leakage at both ends of the wheel cylinder dust covers
If your car has disc brakes, locate the rear brake pads
Measure the brake pad wear thickness. If it is less than 1/8-inch all rear pads will need to be replaced
Take a good look around brake system and the suspension arm, check for any leaks. Seek advice should you any detect leakage and/or serious damage to the components
Inspect the rubber exhaust mountings
Before installing the wheels, take a look at the tire tread; there should be a minimum of 1/16 inch remaining tread depth. Also check the sidewalls for any curb damage
Finally, check the condition of the spare tire
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