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Why is the engine warning light on on your 1997 Ford Explorer?

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βˆ™ 2006-08-09 01:05:46

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It's an indication that the computer has detected a problem. It means you're supposed to use a code scanner to find out what's wrong. It's a simple process, and code scanners are available at most auto parts retailers. You can usually borrow, rent or buy one just about anywhere that auto parts are sold. CSK auto, Auto Zone and other retailers usually lend code scanners as well as offering them for sale. You can also buy them from other auto parts retailers. The " check engine light" is by far one of the most misunderstood technological advances It is a warning light that is illuminated when there is a problem affecting the EMISSIONS of the vehicle.. Don't let it bother you as it is a good thing once you understand it. One point that was brought up a recent meeting of technicians was that the amount of hydrocarbons is greater when the gas cap is left off than when the engine is running. Hydrocarbons are part of pollution emitted as gasoline evaporates. Going a step farther, one facet of the emission system is the "Evaporative" portion. This is when the fumes from the gasoline are leaking from the system into the outside air. This is one part of the emission system that can trigger a check engine light. I would say a small percentage of the vehicles that have a check engine light are the result of a loose or inadequate gas cap. But understand that many scenarios are possible with the "check engine light" The vehicle's powertrain computer (note that some vehicles have multiple computers aside from the powertain computer) will run a series of self-tests. They will only run under certain criteria. And they are different from manufacturer to manufacturer. Some self-tests or

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