2006 chev uplander 3.5 engine
Nobody has a direct answer the OP's problem "
The bolt that holds the tensioner for my serpentine belt broke off"
SOURCE: Bolt broke? we think off of cavalier tensioner for serpentine
ok now that we know that it is a six cyclinder that helps, you have to remove the tensouir so we can find what damages there are. your right nothing is going to be easy. if you call the dealer they should be able to help you with the correct bolt size and pitch. and the part, help your husband by doing this your self , when you call the dealer have the vin number ready you can get that number from the vin plate thats located in the left corner of the windsheild copy the whole number. be patient this repair is not as hard as it looks you guys can handle it, keep my advise on how you are doing kdc744
SOURCE: serpentine belt tensioner will not tighten
If the tensioner will not keep the belt tight then the tensioner is bad and will need to be replaced. The spring on the inside will loose it's tension over time.
SOURCE: how do I release the belt tension pully to replace serpentine belt
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.
SOURCE: How do you release tension on serpentine belt for 2005 Chevy uplander
Typically, there is a spring loaded idler pulley that you need to put a wrench on and pull against the spring tension, which loosens the belt enough to slip it off.
Locate the two belts on the left side (passenger side) of your Mitsubishi Lancer. The outer belt is a serpentine belt, operating four pulleys and the inner belt is your alternator belt.
Follow the serpentine (outer) belt to the three pulleys lined up vertically near the front of the engine compartment. Locate the middle pulley, which is the tension pulley for the belt.
Loosen the bolt on the middle pulley with a socket wrench by turning counter-clockwise. Do not remove the bolt, just turn it a couple of times. Loosen the tensioner bolt on the side of the of the pulley, facing the front of the vehicle.
Remove the serpentine belt and then loosen the bolt on the alternator. With the alternator loose, move it forward so that the alternator belt loosens up and then remove belt from the pulleys.
Install the new alternator belt by placing it over both inside pulleys. Tighten the tension on the alternator belt by moving the alternator back and keeping tension on it by holding it back with a long screwdriver. While the alternator belt is tight, use a socket wrench to tighten up the bolt on the alternator.
Place the serpentine belt back on the pulleys and then use a socket wrench on the bolt on the front of the tension pulley. Once the serpentine belt is tight, tighten up the bolt in the middle of the tension pulley.
Start the Mitsubishi Lancer's engine to test the alternator belt and make sure it is working properly. Once you have verified it is working, turn the engine off.
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