I originally went in for a tire repair. And right away they noticed my 2010 Mazda's engine was louder than normal. There was a knocking noise that I thought was normal since it's been there for a few days. I was advised that it was a Variable Timing Value problem & I should take back to Mazda since under warranty. I did just that, EF TIRE and AUTO Repair was right!!!!! Thanks Guys!
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