When car parts fail and need to be replaced, you put your trust in your mechanic (unless you perform the repair work yourself). Most auto technicians are trustworthy professionals who sincerely want to help you get your vehicle back on the road. But some are less than trustworthy. Occasionally, you’ll stumble upon a mechanic who recommends work you know to be unnecessary. Or, he’ll profess expertise in areas with which he may be barely familiar. If you can identify the warning signs, you’ll have a much better chance of avoiding problems.

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