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What Is Wrong With Having a Loose Gas Cap?
Everyone fills up their gas tank and casually replaces the cap; but could a loose gas cap be a problem? You might be surprised to learn that your check engine light might be over a loose gas cap. Why could this cause problems?
Your automobile is a fine-tuned machine. It has numerous sensors measuring fuel pressures and levels, including the gasoline level. A loose gas cap could lead to fumes escaping from the tank. This could lead to lower fuel efficiency as you drive down the road.