Impala V6-3.9L (2007)
1. Drain all the brake fluid from the caliper.
Caution: Do not place your fingers in front of the piston in order to catch or protect the piston while applying compressed air. This could result in
serious injury.
Important: In the following service procedure, the caliper piston may become damage when it is removed from the brake caliper
assembly. If this happens, DO NOT reuse the piston. Discard and replaced with new.
2. Install the brake caliper in a suitable holding devise.
3. Insert a piece of wood in the brake caliper.
4. Cover the brake caliper with a shop towel.
5. Using compressed filtered, non-lubricated air, apply the air to the remove the pistons from the brake caliper.
6. If one of the pistons fails to be removed from the brake caliper, perform the following steps.
1. Reposition the piston that has been removed back in the brake caliper.
