my car is rattling when going up a steep hill am driving 30mph why is on 2008 Mazda Mazda3

this doing this?

by in Reisterstown, MD on November 27, 2012
2 answers
ANSWER by on November 27, 2012
Probably 'lean' condition or running hot. MANY possibilities-- should be scanned , if no trouble codes they can monitor sensors for readings out-of-range. NOT parts house 'code reader' , real scanner with Mazda compatibility needs to be used ,with someone that knows how to 'read' it.
ANSWER by on November 27, 2012
sounds like you are in the wrong gear...

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