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How to Perform Basic Car Trouble Diagnosis

To perform basic car trouble diagnosis, first you must know the important elements essential for good combustion and know the how to engine combustion condition by just looking at the condition of the spark plug.


Car gasoline engine is categorized by the internal combustion engine. It generates power by changing chemical energy of the fuel into the heat that produces mechanical energy. The change of chemical energy into the heat is accomplished through combustion, thus good combustion is a key to engine performance.

Good air-fuel mixture, good compression pressure and good ignition are the three essential elements for good combustion to occur as shown in the figure below. An engine in bad condition means that one of these three factors is not satisfied.

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Nissan Navara Engine Oil Low Service Light Resetting

One of the special feature of your Navara is the engine oil low service light. All Navara is equipped with engine oil level and oil change schedule indicator light. On the instrument panel of the vehicle there is a wrench symbol appears on the instrument panel to remind the driver that the vehicle is due for servicing.

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Nissan Navara D40 Change Oil

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If you own a Nissan Navara, one of the crucial routine maintenance that you should not be neglected is the oil change. D40 has features that reminds the driver on maintenance schedule. Navara service indicator light is a features that appears on dash board when it is time for the change oil.