How to Change a Serpentine Belt on a 2006 Pontiac G6by Grace Mclain
The serpentine belt is a single belt with ridges on its underside that travels inside of the accessory pulleys. The serpentine belt on the 2006 Pontiac G6 is held onto the accessory pulleys by an automatic adjustment tensioner. This tensioner keeps the proper amount of tension on the belt as the belt travels around each accessory pulley. If the serpentine belt becomes stretched or damaged, the belt will need to be replaced as soon as possible.
Park the 2006 Pontiac G6 in a safe area and open the hood. Look on the top of the fan shroud near the hood latch for the serpentine belt routing diagram. Use this diagram when installing the new serpentine belt around the pulleys.
Locate the air filter housing cover. Unhook the air flow sensor from the air filter housing. Compress the locking clip on the sensor with your hand and gently pull up on the plug. Position the plug out of the way.
Remove the air filter housing cover by unscrewing the screws with the 3/8-inch drive ratchet and a 3/8-inch t-20 torx bit. Pull the air filter cover off and set it to the side of the air filter housing.
Jack up the front of the 2006 Pontiac G6 and place the jack stands under the designated jacking points on both sides of the vehicle. Lower the vehicle onto the stands and leave the jack upright.
Reach in behind the passenger side front tire and remove the plastic cover from the wheel well. The plastic cover is held on by small plastic clips. Use the flat head screwdriver to pry the small clips through the holes. Then, pull the plastic cover out and set it to the side. You can now access the serpentine belt on the crankshaft pulley and the air conditioner pulley.
Move back to the front of the engine and locate the automatic tensioner. Turn the pulley that is connected to the tensioner clockwise with the 1/2-inch drive pull bar and the 5/8-inch socket. Reach down with your other hand and pull the belt off of the automatic tensioner pulley. Then, remove the belt from the alternator, water pump and the power steering pump pulleys.
Move back to the front passenger side wheel well, and reach in and pull the belt off of the air conditioner pump pulley and the crankshaft pulley. Then, pull the belt out of the engine compartment through the wheel well.
Position the new belt through the wheel well and onto the crankshaft pulley and the air conditioner pulley. Move back to the front of the engine and route the new belt around the remaining pulleys as directed by the serpentine belt routing diagram.
Turn the tensioner counterclockwise again with the pull bar and 5/8-inch socket. Then, slide the new belt onto the automatic tensioner pulley. Release the tensioner and it will pull the slack out of the belt and bring it to the proper tension. Pull the breaker bar and socket off of the tensioner pulley and out of the engine compartment.
Reverse the same steps as outlined above for reinstalling the wheel well cover, air filter housing and the air flow sensor. Then, crank the engine and let it run for about one minute. Turn the engine off and examine the belt again to make sure that the new belt is still inside of all of the accessory pulleys. Close the hood.
- If you can't find the diagram for the serpentine belt, make sure that you draw your own diagram with a pen and a piece of paper before removing the old belt. Look at the routing direction of the old belt and draw a diagram of the serpentine belt as it is routed around each pulley.
- Always keep your hands away from moving pulleys.
Items you will need
- 3/8-inch drive ratchet
- 3/8-inch drive t-20 torx bit
- Jack stands
- Flat head screwdriver
- 1/2-inch drive breaker bar
- 5/8-inch socket
- New serpentine belt