Question about 1993 Buick LeSabre

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93 Buick Lesabre custom 3.8 L with engine knock and stalling

Two days ago the car started stalling when you slow down from speed to stop at a light. Yesterday I notice a knock that started out soft and is now quite loud. It starts out soft and gets louder as the engine warms up. Sounds like a rod bearing is going but I also read something about harmonic balacers on these engines making a similar noise. Has anyone had this type of problem? the car has 162,000 mi and has been well maintained, and was running great before this knock.

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If you can turn the serpentine belt either direction by hand at all you probably need a harmonic balancer..or just look in the passenger wheelwell at the h/balencer and see if the rubber is cracked all the way around.. just fixed one with that issue

Posted on Jun 05, 2009

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Posted on Jan 02, 2017

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