Depending on the year of manufacture, the mounting points may differ.
Front bumper
-open the hood.
-under the hood, pull out two pistons and Unscrew one of the screws that attach the top part.
-turn the wheels out of the way.
-in the wheel arches, we Unscrew the screws that fasten the undercarriage (the front part).
-we take the slats aside and Unscrew the screws (screwed from the bottom up) that attach the corners of the bumper to the fenders.
-from the bottom side, pull out the pistons and Unscrew the screws that attach the lower part.
-with an assistant, we pull the bumper forward from the rails in the fenders (look for the wires).
-remove the connector from the fog lights (if present).
Rear bumper
- open the trunk lid.
-in the opening of the trunk, we pull out four pistons that attach the upper part.
-from the trunk, behind the side panels, we Unscrew one nut on each side.
-pull out the pistons and Unscrew the screws on the bottom side (inserted and screwed from the bottom up).
-in the wheel arches, we Unscrew the screws that attach the undercarriage.
-behind the slats, we Unscrew one screw on each side, which attaches the corners of the bumper to the fenders.
-with an assistant, we pull the bumper back (look for the wires).
-remove connectors from electrical equipment.
How to remove the front and rear bumper Pontiac Grand Am (1999-2005)
How to remove the front and rear bumper Pontiac Grand Prix (2003-2009)