Edmunds Answers

Answers

  • karjunkie 10/28/08 6:04 am PST

    Most probably, you have to replace one or more oxygen sensors. You should first go to your mechanic or local auto parts store and have them hook up an OBDII scanner to the vehicle and check for any fault codes. This will tell you if what specific parts, sensors or modules are possibly malfunctioning. My personal preference when an O2 sensor dies is to change both of them with a matching set as they are relatively cheap and easy to replace.

  • jwagnr 10/28/08 9:55 am PST

    ok, first ignore anything from the previous answer except for the getting it checked out part. when you say emissions light im assuming you mean the check engine light came on? that light will come on for hundreds of reasons, and when i say hundreds i mean that literally, the computer in the car constantly does self tests while you drive, as soon as a system comes back that there is a fault somewhere in the engine(typically electrical meaning a sensor of some sort) that light will illuminate. you would have to take it to a mechanic or dealer, do not by any means take it anywhere that offers "free diagnostic" because they do not perform diagnostic. those types of places hook up a pocket scanner and just pull codes and will give you a part. take it somewhere that actually charges for diagnostic to check the check engine light. the best reason to take it somewhere like that is because when somebody charges for diagnostic they usually have a handle on what they are actually doing and telling you after the fact of diagnosis. they also typically use an actual diagnostic computer, for example i run my own shop and i possess a snap-on modis scanner. my modis cost me $8,500.00 and the software cost me an additional $6,000.00. i charged an automatic $37.00 for the first half hour and $74.00 for up to an hour and a half for full diagnostic. diagnostic is not only pulling codes and taking a guess at whats going on. its a matter of following a flow chart to accurately depict exactly what is wrong with the vehicle. when it comes to those lights try to avoid any quick fixes and just take care of the problem the right way the first time especially if inspection is near since in most states a vehicle fails until that light is off due to being fixed, simply disconnecting the battery does not work.

  • country2 10/28/08 10:33 am PST

    The first answer is the one i agree with because i have done that a hundred times. the free part is what i like. they don't always tell you what part it is that is bad because the computer gives them more than one answer of what could be causeing you light to come on but it is free and they can give you advice if you want it. the light won't hurt you car in most cases but if you notice you car acting different after the light comes on then you need to fix it .

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