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Renault scenic Auxiliary belt tensioner making high pitched noise

Auxiliary belt tensioner making high pitched noise, slight vibration coming from pulley wheel. Any suggestions please. Thanks, Paul.

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  • 43 Answers

Time to replace the pulley, you can test it by pulling off the belt and spinning the pully with your hand or some compressed air, if it makes noise then its time to replace.

Posted on Nov 07, 2012

  •  Paul Hawkins
    Paul Hawkins Nov 07, 2012

    My mechanic mate put a screwdriver on the side of the wheel and felt vibration coming from it. This is why he thinks it it the tensioner, the other wheels dont give off the vibration. What do you think, would you replace the tensioner? Thanks, Paul.

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SOURCE: noisy water pump pulley,alternator pulley..timing belt tensioner

I have a 1995 xj6....same problem. I replaced the belts, water pump, and the alternator. Still does it. As I play with the tension on the belt (belt that drives water pump, alternator) it goes away and comes back. If I remove the belt, the metal to metal screech stops. I then, with just the belt, turned the main pulley on the front of the engine, and there was the sound! The main pulley has 2 belts that run on it. Also, 2 pulley tracks. They SHOULD move simultaneously and be super meshed. But the rear one moves on its own under tension until it warms up and I guess, the bushing maybe expands. Now.....how do I fix it??????

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17d60e8.jpgGo ahead

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SOURCE: zigzag light on megane scenic dashboard comes on

this exact problem on a megane coupe is caused by a small air pipe that connects to a 2 inch wide black box that is located under the bonnet near the windscreen on the passangers side. the zigzag light indicates an electrical fault (in this case lack of compression and will affect your revs) if you find this pipe and it has snapped off. the reason for this may be that your engien is lose and moves. grab the engien with 2 hands and see if you can wobble it with allot of play. if so your engien mountings need replaceing. you may also experiance juddering in low gears

Posted on Mar 04, 2010

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