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A vehicle comes into the shop with gray or blue smoke in the exhaust. Which of the following is likely to be the cause?

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An auto mechanic can get certified by taking the Automotive Service Excellence (ASE) exams, covering fourteen different subject areas, such as diesel and gas engines, trucks, buses, damage repair, auto components and much more.


A vehicle comes into the shop with gray or blue smoke in the exhaust. Which of the following is likely to be the cause?





 
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