Q:

What does the check engine light on a Ford Taurus mean?

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One of the most common causes of a check engine light on the Ford Taurus is the failure of an oxygen sensor. Bankrate says this was the most common car repair in 2013, accounting for 7.55 percent of all repairs. A failed oxygen sensor often robs a vehicle of fuel economy by as much as 40 percent. Common causes of failure include use of E-85 fuel and engines burning oil.

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The check engine light has two levels of warning. If it remains steady and the vehicle is operating normally, it is safe to drive, but owners should go to the repair shop for diagnostic testing. A blinking check engine light is a sign of a serious problem. CarCareKiosk.com warns drivers to stop driving the vehicle and have a tow truck take it to a garage for repair. With an intermittent check engine light, taking note of when the problem occurs helps the mechanic to diagnose and repair the problem.

Repair Pal reports a common problem with 1995 to 2010 Taurus vehicles is the magnet for the camshaft position sensor falling from its mount, damaging synchronizers. As a result, the vehicle becomes difficult to start, and the check engine light illuminates. With this problem, both magnets and synchronizers require replacement.

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