Mechanics

ENGINE HUMMING WHEN 1500 RPM

1992 BMW 316

Engine Mechanical problem
1992 BMW 316 4 cyl Two Wheel Drive Manual 155000 miles

my engine will humming when it reach 1000 - 1500 rpm and it will gone after it pass those level or below those level, it just replace the engine mounting and it still happen, feel so confused when my mechanic told me maybe the bearing for the cranckshaft was broke and that was the cause of the problem.
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Matobe
May 18, 2009.



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