How to Troubleshoot a Tensioner Pulley Noise

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Most recent vehicles ingest a curved track to separate the engine accessories much as the noesis steering, air conditioning and alternator. The track routes around the pulleys in a serpent-like manner, hence the name. A track tensioner that consists of a decamp bag that mounts on the engine, a spring-loaded limb and a machine applies enmity to the belt. The machine itself has an outmost ring and an intrinsic bearing. If the machine is making noise, either it's the result of a direction failure or the outflow is not providing the comely tension.

Difficulty: Moderately Challenging Instructions things you'll need:

• Flashlight (optional)
• Serpentine track tool

• 1

  Start your vehicle, leave the transmission in park, set the parking brushwood and open the hood. Listen to the tensioner racket to note if the sound is intermittent or constant. An intermittent racket strength signify the tensioner is not holding comely tension, while a unceasing racket strength signify a intense bearing.

• 2

  Shut the engine soured and shine the torch on the riblike side of the belt. If the track shows signs of glazing, the track has most likely been slippy on the tensioner pulley.

• 3

  Push down on the curved track midway between the two uppermost pulleys. If the track deflects more than digit inch, the tensioner is not holding comely enmity and you should change it.

• 4

  Connect the curved track agency to the tensioner. Rotate the tensioner levorotary just far sufficiency to artefact the curved track soured the machine closest to the track (or machine easiest for you to reach, depending on what kind of container you're employed on).

• 5

  Rotate the tensioner back into position. Shine the torch on the tensioner machine and investigate the machine face. If there's grounds of glazing on the machine surface, the track has been slippy on it.

• 6

  Spin the tensioner machine by hand and center to it. If the direction is good, the machine will spin freely, straight and true, without any noise. If that's not the case, you hit a intense direction and staleness change the tensioner.

Car Repair & Maintenance