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It's alternator. Do you have a serpentine belt or seperate belt. If seperate, there are two bults on the alternator. Loosten both but do not remove. Take a prybar and pry back on alternator. Have someone hold the prybar while you tighten or hold yourself and tighten. If you have a serpentine belt, you need to replace the belt tensioner. The spring is weak inside the tensioner. It's 30 years old. remember that.
Remove the alternator/power steering pump and water pump drive belt to gain access to the air conditioning drive belt. To remove and install the air conditioning compressor drive belt, first loosen the tensioner pulley lock nut, then turn the adjusting screw to raise or lower the tensioner pulley assembly Accessory Drive - 3.3L Engine or Accessory Drive - 3.5L Engine To adjust the air conditioning drive belt, loosen the tensioner pulley nut and adjust belt tension by tightening adjusting screw. Torque pulley nut to 54 N•m (40 ft. lbs.) after adjustment. The Poly-V generator/power steering belt has an adjustable tensioner pulley located on the timing belt cover Accessory Drive - 3.5L Engine to maintain proper belt tension. To remove or install this belt, Release tension by loosening the tensioner pulley nut and adjustment bolt Accessory Drive - 3.5L Engine Reverse procedure to install and tighten belt to specified tension.
Open the hood, and locate the
auto-tensioning bolt in the center of the pulley system. This bolt will
be in the center of a pulley that does not appear to be connected to any
Turn the auto-tensioning bolt clockwise with a socket wrench to release tension on the belt.
Slide the belt off the pulley system.
Orient the new belt on the
pulley system according to the belt path printed on the underside of the
hood and next to the hood latch mechanism on your Cavalier. Leave slack
in the belt around the tensioner pulley.
Slide the belt over the
tensioner pulley while you have the auto-tensioner pulley bolt turned
clockwise as far as it will go. Make sure that the belt is sitting
centered in all the various pulley grooves on the pulley system.
Release the tension pulley bolt,
and apply tension to the belt. The auto-tensioner will automatically
apply the correct amount of tension on the belt.
Hello ycharger. The cavalier uses a spring tensioner and is not adjustable. If your belt is loose it is most likely that the tensioner has seized or the spring has broken and not keeping the belt tight. It will require the replacement of the tensioner as an assembly.
Not a real easy one to do though. Here is the guide from the manual.
Disconnect negative battery cable and remove the coolant reservoir.
Remove serpentine belt.
Remove two generator bolts.
Remove power steering pump and position aside.
Remove tensioner bolts and tensioner.
Reverse procedure to install, Torquing tensioner bolts to 37 ft. lbs.
There you are, I hope it helps. Thank you for using FixYa.
Really don't need a diagram. Loosen the slide bolts on the power steering pump. loosen or tighten the pump by turning the jack screw (long transverse bolt) under the pump. Once the belt is tightened up, lock down the slide bolts and you are finished.
You can run down to your local auto parts store and buy a serp belt tool. Or you can take a 3/8 drive ratchet, locate the 3/8 square hole in your tensioner and put the ratchet in the hole. For more leverage I put a deep socket over the ratchet handle and put a long 3/8 extention in the deep socket. This will provide ample leverage and will save buying more tools you do not need. Simply move the tensioner to the direction that takes pressure off of the belt.