The new 2007 Lincoln Navigator is one of the most luxurious American-made vehicles, appearing as an elegantly dressed full-size SUV on the outside with especially posh interior appointments. The new ...

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The 2007 Lincoln MKZ offers a lot of content for not a lot of money. When compared to vehicles such as the Lexus ES350 or INFINITI G35, the Lincoln MKZ has a price point that is thousands of dollars ...

One of the most important measurements we make while tuning an engine is finding out what the actual balance of air and fuel was inside the engine. It doesn’t matter if we have a carburetor, port ...

Oxygen sensors detect the amount of oxygen in the exhaust. Oxygen sensors usually don’t have a replacement schedule. A bad oxygen sensor can be diagnosed with a code reader or scan tool. A car’s ...