There is a spring loaded belt tensioner with a pulley located below the alternator. You will need a 3/8 drive ratchet or breaker bar(breaker bar gives you more leverage). Insert the breaker bar into the square hole on tensioner and push down or counterclockwise and remove belt. If tensioner does not spring back spray it with lubricant and work it back and forth-they stick sometimes.
How do you install an alternator belt on a 1986 GMC s15 pickup truck
Never, as it has a chain not a belt.
Make SURE that the breaker bar (3/8th NOT 1/2 inch) is long enough or you will pinch the handle or your hand when you release the tension. If you are careful, and keep control of the belt you can remove it completely over the fan blades without removing the upper radiator cover. the entire process should take 10-15 minutes. When installing the new belt, route it as the diagram on your truck indicates, but have the Alternator be the LAST pulley you slip the belt over. if not, you will have a hard time getting the belt on the tensioner and hold the tensioner all the way open. I do not have a 1995, but almost all serpentine belts have an idler pulley to keep tension. You take a breaker bar and turn the idler pulley nut releasing tension and then you can slide the belt off.
right under the almost impossible to get to alternator......
Never, as this truck does not have a timing belt but instead uses a cam chain that will normally last the life of the engine.
you need a size 55 belt if you have ac truck comes wit 4 different sized belts
there is a spring action pully below the alternator that takes either a 15mm wrench or a 3/8 inch drive ratchet, push down to release tension while pulling belt off, and reverse the process to put belt back on.
1. Make sure that when you purchase a new belt, they don't try to sell you the full size serpentine belt. 2. There is a diagram of the belt routing on your truck when you lift the hood. Follow that. 3. Unfortunately, you need to remove the serpentine belt to replace the air conditioning belt.... the belt routing for the serpentine belt is also shown on the diagram. 4. To remove the serpentine belt, get a ratchet set, and crank the "self tensioning" assembly to release tension on the serpentine belt, and remove the belt. 5. There is another "self tensioning" assembly for the air conditioning belt. Crank to place the new AC belt on and release. 6. Re-install the serpentine belt. This is an easy fix... it took me less than 20 minutes, I'm not a mechanic.
Open hood Make sure to have a good belt routing diagram Remove belt from accesories by releasing tension using a 3/8 rachet in the provided square hole. Remove belt Remove bolt from tensioner to block Replace tensioner and torque bolt to 32 ftlbs Bump engine over(dont let it start) to ensure belt is installed correctly
Serpentine belts use an pulley to keep tension on the belt. You need a breaker bar; attach to the tension pulley and turn the nut. One way will not move and the other way will loosen the belt. It will usually then just slide off that pulley and then come off all the rest.
The diagram is under the hood. Pull tentioner to release tention remove belt/ replace
On the newer models you just need to remove the belt, disconnect the connector on the backside of the alternator, remove the two bolts and then reverse the process. You will need a ratchet to relieve the tension on the belt via the tension pulley. Always disconnect the battery first!