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Es300 Engine Knock


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Recently, while driving the wife's '98 ES300, noticed an engine knock when stopped at traffice lights. Was very disturbed by this, since the car only had 55,000 miles and had been regularly serviced (oil & filter change, etc.) every 5,000 miles.

Fearing the worst, took the car to the Lexus dealership where we bought it and left it with them to diagnose the problem. Several days later, got a call that the Service Dept. had determined the knocking sound to be caused by drive belts with the felt(!) lining worn off. It's interesting that the factory was aware of the problem and had presented the info at a tech seminar. Equally interesting is that the engine knock occurs on some cars and not on others.

Have never encountered anything like this before, but happy to report that new drive belts completely corrected the problem.

Kudos to the Service Dept. at Longo Lexus (El Monte, CA) for their accurate, professional diagnosis and correction of the problem. Sometimes it pays to have a car serviced/repaired by those who know it best!

Martin T.

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