This video will show you how to remove the serpentine belt tensioner in a Saturn S-Series car. First, loosen the tensioner to get the serpentine belt off. You can relieve the tension on the tensioner by the top or the bottom. Now, get out your breaker bar and remove the bolts on the tensioner in the Saturn engine. The serpentine belt carries power from the crankshaft to other vital systems like the alternator and air conditioner compressor or the accessory drive belt. These belts tend to wear out after 60,000 to 80,000 miles, but you'll know it's time for a serpentine belt replacement if you start to hear a loud whine or squeak coming from under your hood. 1. Determine repair parts needed: All moving parts are subject to failure and you may need to remove the serpentine belt to replace the belt itself or one of the components it drives. 2. Park the vehicle in a level spot and set the emergency brake. Turn the engine off and chock the rear wheels for both directions. 3. Serpentine Belt's Hydraulic Tensioner Replacement Hint. I just finished this job, and found it to be more of a head slapper than I expected at the outset. The removal and installation of the assembly itself has been covered pretty well to this end, but here it is again: 1. 12mm bolt at the bottom of the engine block. Insert the 3/8 inch drive ratchet into the tensioner. Turn the tensioner clockwise to loosen the belt. Pull the belt off the alternator. Release the tensioner. step 4 :Reinstalling the Serpentine Belt. 4:22. Loop the belt around the crank pulley. Bring it over the water pump. Bring it under the A/C Pulley. Figure 1. Remove plastic covers. Remove the air scoop held in by 10mm bolts on either side. Figure 2. Remove 10mm bolts holding in the air scoop. At this point it's recommended to perform a quick test to see if you can reach the tensioner pulley on the front of the motor with your 14mm socket or serpentine belt removal tool. Step 1. Disconnect the negative battery cable with a ratchet and socket, and locate the serpentine belt system near the front of the engine. Some automobiles will have the belt system on one side of the engine, and will therefore require removal of one of the front tires. If this is the case with your vehicle, you will need to lift the front of Find the hole, insert breaker bar, or a ratchet (you may need a pipe on the ratchet) and put pressure on it. Generally counterclockwise is the direction you need to go. That will release the tension on the belt while you are maintaining pressure on the breaker bar while it is inserted in the pulley. Remember how the belt is routed. Insert the 14mm socket and breaker bar into the tensioner. Turn the tensioner clockwise to loosen the belt. Pull the belt off the alternator. Release the tensioner. Pull the belt off by hand. step 2 :Removing the Tensioner. 1:15. Remove the two 12mm bolts from the tensioner pulley and idler pulley. 2luaL.

how to tension a serpentine belt