Question about 2003 Nissan Altima
When the service engine soon light is illuminated in your vehicle, it means that the on board self diagnostic system has detected a fault either in the engine, transmission, or accessory controls. when this light is illuminated, it means that there is a code stored in the vehicle memory which can be extracted with a code reader. any garage should be able to do this for you. good luck!
Posted on Aug 29, 2010
Basically the car has a computer that works out,for the type of driving,how many stop/starts,the duration of the drive,etc ,Then it tells you that you need a service(rather than in the old days of doing a service every 12 months/?mileage)for example on a vw you could go 40k in one year and only have one service,and one oil change...clever eh.....
Posted on Aug 28, 2010
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Posted on Jan 02, 2017
This is most likely the O2 Sensor however, that light may also come on for a vacum leak or anyone of a number of other sensors. Take the vehicle to Auto Zone and ask them to use a code reader on it and tell you what the code is for. If the code is for O2 sensor as I suspect the part will cost about $40 and take maybe 20 minutes to replace your self. ($40 for part + 5 to 10 for the special socket) If it shows anything else you may want to take it to a mechanic to have the vehicle diagnosed.
Posted on Oct 08, 2009
Either take it to a dealership and have the mechanic do it for you,,or purchase a code reader for your vehicle of ebay and do it for yourself.
Posted on Jan 19, 2009
I have the same car and if the gas cap is loos for any reason the service engine light will come on so check that. If it is it will turn off in a few days after you tighten it.
Posted on May 13, 2009
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