Question about 1994 Mazda 323

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My car is showing a red light for 'oil'. However there is enough oil. There is also a 'knock' sound whenever the car travels from 100km. Whet could this could be and what is the solution? Thanks.

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Hi this sounds like the big ends are on there way out, these are the parts that connect the piston conrods to the engine crank, when the bearing wear this causes a gap between the conrod connection to the crank and that will give you the knocking noise, the low oil pressure is also an affect of this problem as the pressure is reduced as the engine is running, there are 2 ways to cure this both unfortunatley are expensive, first, complete engine change, which would be better to do, or a repair or replacement of the conrod bearings, dependent on how much they have warn or even how much the crank has warn if they are really bad then it would be a replacement of all the parts...hope this helps please vote thanks

Posted on Jul 13, 2010

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