How to Change the Rotors on a 2007 Pontiac G6

The Pontiac G6 was introduced in 2005, and it replaced the Pontiac Grand Am. The 2007 Pontiac G6 was equipped with a 2.4-liter, in-line four-cylinder in the base model. The 2007 G6 GT was available with a 217-horsepower, 3.5-liter V-6, and an optional 227-horsepower, 3.9-liter V-6. The 2007 G6 GTP was equipped with a 252-horsepower, 3.6-liter V-6. The 2007 G6 rotors are responsible for creating the friction on the brake pads, to bring the car to a stop. If the rotors are warped or too thin, they cannot perform their braking functions effectively.

Instructions

1

Raise the hood of the G6 and check the fluid level in the brake fluid reservoir. Remove brake fluid with a turkey baster or bottle pump siphon, until the brake fluid as about 1/2-inch below the "Full" mark on the reservoir. Install and tighten the reservoir lid.

2

Loosen the front wheel lug nuts with a tire iron. Raise the front of the G6 with a jack. Set jack stands beneath the front sub-frame rails, on either side of the engine. Lower the car onto the stands. Remove the front wheel lug nuts, then remove the front wheels from the car.

3

Remove the caliper bolts from the rear of the caliper, with a ratchet and socket. Remove the caliper from the brake assembly, using a small pry bar, if needed. Hang the caliper from the front strut coil spring with a metal clothes hanger or rod. Remove the brake pads from the caliper bracket, on the outboard and inboard sides of the rotor. Place one of the brake pads against the caliper piston inside the rear of the caliper.

4

Wrap a C-clamp around the brake pad and the back of the caliper housing. Tighten the C-clamp to compress the piston completely. Throw the old brake pads away. Remove the brake pad retainer clips from the caliper bracket, by hand. Remove the caliper bracket bolts from the rear of the steering knuckle, using a ratchet and socket. Remove the old brake rotor, by hand.

5

Install a new brake rotor onto the G6, and finger-tighten a single lug nut against the face of the new rotor. Spray the entire surface of the rotor with aerosol brake spray to thoroughly clean both sides of the rotor. Install the caliper bracket onto the car, then tighten the mounting bolts with your ratchet and a socket. Clean the channels on the caliper bracket where the pads are to be placed, using a wire brush. Install a thin layer of caliper grease on the outward-facing lips of the bracket.

6

Install the brake pad retainer clips onto the caliper bracket, by hand. Install new brake pads onto the caliper bracket, making sure the "L"-shaped metal protrusion is only positioned on the inboard side of the rotor. The "L"-shaped metal piece is the brake wear indicator, and should be situated at the top end of the inboard brake pad when it is installed on the car.

7

Remove the caliper slide pins from the rubber boots on the back of the caliper. Dip the slide pins into your tub of caliper grease, or thoroughly coat them with fresh grease. Insert the pins back into the rubber boots when they are properly lubricated. Remove the caliper from the coil spring and install it over the new pads and rotor. Tighten the caliper mounting bolts to 26 foot-pounds with a 1/2-inch-drive torque wrench and socket.

8

Repeat steps 2 through 8 to complete the rotor and pad replacement on the other side of the G6. Remove the lug nuts from the faces of both rotors, by hand.

9

Install the front wheels onto the G6 and tighten the lug nuts snug with a tire iron. Raise the car off the jack stands, then remove the stands from beneath the car. Lower the G6 to the ground and tighten the front wheel lug nuts to 100 foot-pounds with your torque wrench and a wheel nut socket.

10

Sit in the drivers seat of the G6. Depress the brake pedal about two-thirds of the way down, then release the pedal for 15 seconds. Depress the brake pedal two-thirds of the way down again to finish stiffening the pedal and to seat the new pads and rotors together.

11

Check the brake fluid level in the reservoir. Add fluid up to the "Full" mark on the reservoir, if necessary. Install and hand-tighten the reservoir cap.

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