Check and replace the poly-V belt (every 7,500 miles or 12 months) (Chevrolet Lumina 1)

1. The single poly V-belt drive is located at the front of the engine and plays an important role in the operation of the engine and its components. Due to its function and material composition, the belt is subject to wear and tear and its condition should be checked periodically. The belt drives the generator, power steering pump, coolant pump and air conditioning compressor.

2. With the engine off, lift the hood and run your fingers along the belt (if necessary, use a flashlight) and check for cracks and separation of belt fibers. Also, check to see if the belt has been sanded or abraded, which will result in a shiny surface. Both sides of the belt should be checked. This means you have to bend the belt and check the inside.

3. Check the ribs on the inside of the belt. They should all have the same depth, and none of the surfaces should be smooth.

4. The belt tension is maintained by the tensioner unit and is not adjustable. At the mileage specified in the technical specifications in the maintenance schedule at the beginning of this chapter, the belt must be replaced, otherwise it will become severely worn or damaged.

5. To replace the belt, turn the tensioner counterclockwise to loosen the belt tension (see illustration). When the belt tension decreases, the tensioner will move downward.





6. Release the belt from the auxiliary parts and carefully release the tensioner.

7. Place the new belt over the various pulleys, rotating the tensioner again to install the belt, then release the belt tensioner.