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Pop the hood of the car and locate the serpentine belt routing diagram. The diagram on the 2003 Chevrolet
Impala is on top of the fan shroud. The diagram will be a picture of
all of the accessory pulleys and how the serpentine belt is routed among
the pulleys. This diagram will give you the exact direction for routing
the new belt onto the pulleys. If you cannot find a serpentine belt
routing diagram, take a notepad and pen and draw out the exact routing
diagram of the old belt across the pulleys.
2
Locate the serpentine belt tensioner. It is located below the alternator
on the left front side of the engine. The tensioner on the 3.4 liter,
3.5 liter and the 3.9 liter engines will require a 3/8 ratchet to
release the belt tensioner. The 3.8 liter engine will require a ratchet
and a 15 mm socket for the belt tensioner. Rotate the belt tensioner
clockwise to loosen and remove the belt from the belt tensioner pulley.
3
Slide the old belt from the belt
tensioner pulley. Remove the belt from the remaining pulleys and pull
the belt from the engine compartment.
4
Route the new belt across the
crankshaft pulley first. The crankshaft pulley is the big pulley on the
bottom of the engine in the center. Then route the serpentine belt
across the remaining pulleys as directed by the serpentine belt routing
diagram. Leave the belt tensioner pulley for last.
5
Rotate the belt tensioner
clockwise again to relieve the tension and slide the new belt across the
top of the belt tensioner pulley. Release the belt tensioner and the
belt will tighten up as the tensioner applies pressure to the belt. Make
sure the new belt is properly seated in all the pulleys.
6
Crank the engine and inspect the belt again to make sure that it stays seated in the pulleys.
Follow this link, page #123, Diagram #5-57. Good Luck. http://www.daycoproducts.com/daycoweb.nsf/cf652a4feb630ad0862571a4005ae40c/1120b6e8f406fd3e862574c000569a91/$FILE/SerpentineBeltRoutingGuide.pdf
One doesn't need a serpentine belt diagram to thread a new belt to the pulleys.
Just note which pulleys are smooth and which have grooves in them, and 'thread' the belt loosely around the pulleys in a fashion where the smooth part articulates with the smooth part, and the grooved inner part articulates with the grooved part.
Do this until the last pulley is the tensioner pulley, which can have its tension released with a breaker bar.
Helllo there: Simply click on the links that i have provided and the routing diagram will be there ok
2001 - 2001
CHEVROLET CAVALIER - L4 2.2L 134ci CNG FI N 5
Belts / Tensioners / Pulleys
Part Number
Description
5050630 Belt Routing Diagram
Multiple Accessory, w/o A.C.
5050888 Belt Routing Diagram
Multiple Accessory, w/A.C.
On a vehicle with a serpentine belt system there is always a tensioner pulley. Usually in the center of the routing network, you need to place the correct size wrench on it and push or pull with one hand releasing the tension on the belt. With the tension released, use the other hand and slip the belt out. Most vehicles have a sticker in the engine compartment for replacing the belt to be sure it is put back in correctly. If not, be sure you look at the routing and or draw a picture so that it is replaced the same.
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