Keep an eye out for issues. For the most part when you are driving, your eyes should be on the road ahead. When this is the case, the only way to really diagnose a mechanical issue visually is to see smoke coming from under the hood. At that point, the issue is probably already pretty severe. For this reason, it’s helpful to rely on your other senses to pick out problems before they get to that point.
Check the dashboard for warning lights. One thing that you should definitely keep an eye on is the dashboard.
There are a number of warning lights on the dashboard that can tell you when there is a problem.
The main light to keep an eye out for is the Check Engine light. If you find that this light has illuminated on your dashboard.
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