Wednesday, February 26, 2014
How to Change the Tensioner Pulley on a Nissan Xterra
Cars with a serpentine belt are equipped with a tensioner pulley, which puts pressure on the serpentine belt to hold it in place. If the serpentine belt comes loose due to a malfunctioning tensioner pulley, the belt will slip out of place and you could lose power to several systems, including the alternator, air conditioning, and power steering.
Instructions
- 1
Pull the emergency brake and chock the wheels of the car. This is an important safety step, as it prevents the car from rolling or moving while you are working on it.
2Open the hood and determine the location of your serpentine belt and tensioner. This will be on the front of your engine block. If your car does not have a routing diagram for the serpentine belt on the underside of the hood, draw a diagram on a spare sheet of paper.
3Place the head of the 3/8-inch drive ratchet in the hole of the tensioner pulley, and apply pressure counterclockwise to remove pressure from the serpentine belt, then remove the belt from around the tensioner pulley. There is no need to remove the belt from all of the pulleys that it services. Move the belt far enough from the tensioner so that you have ample room to work.
4Determine what socket size you need to remove the tensioner and tensioner pulley. The bolt head that you need to loosen is the one located on the front of the tensioner, as opposed to the one on the tensioner pulley. Using the socket and ratchet, loosen and remove the bolt.
5Remove the tensioner assembly from the engine and place it to the side.
6Install the new assembly and replace and tighten the bolt until it is secure. Make sure that the bolt is tightened well, as engine vibration can cause a loose bolt to work itself loose.
7Replace the serpentine belt around the tensioner pulley and er to the routing diagram to ensure that it remains in its proper position around the other pulleys. Insert the ratchet head into the hole on the front of the pulley and apply pressure in a counterclockwise direction to reapply pressure to the serpentine belt.
No comments:
Post a Comment