Mechanics

VOLVO S70 COOLANT PROBLEM

1996 Volvo S70 • 70,000 miles

I was driving and my coolant levels were right up to the mark.. There was no leakage and all of a sudden on the road my car was showing indication of overheat. I stopped the car and tow it down to garage. After the mechanic evaluation one of the cylinder bore had a hair line crack. Please advise why and how this crack developed and what could be the reason?
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Mmubeena
December 8, 2012.



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