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A check engine light can indicate a broad spectrum of problems with your 2004 Volkswagen Jetta. In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light. The video above shows how to locate the on board diagnostics (OBD) plug on your 2004 Jetta, how to read the trouble codes and how to reset or clear the check engine light using a scanner on your Jetta.
Intermittent Check Engine Light: If the check engine light on your 2004 Jetta is intermittent, try to take note of the conditions when this happens. For example, does it happen when you accelerating, driving on the highway or does it appear at low speeds? This will help your mechanic evaluate the issue. Steady Check Engine Light: If your check engine light is on every time you operate your Jetta, you need to have it checked as soon as possible, especially if you notice performance problems or unusual noises. Flashing Check Engine Light: If your check engine light is flashing, stop driving your Jetta and have it towed to your nearest mechanic - you probably have a very serious problem with your car and you risk ruining your engine by driving it. If you are unsure about what your diagnostic trouble codes mean; have your Jetta diagnosed by a professional automotive technician.
Power steering fluid is easy to check and many people (mechanics included) often forget about - learn how here2004 Volkswagen Jetta GL 2.0L 4 Cyl. Sedan
If you are leaking oil and parking on your oil spots each night, the oil is breaking down your tires' rubber2004 Volkswagen Jetta GL 2.0L 4 Cyl. Sedan
Many cars will burn or leak a little bit of oil. Over time, this adds up and you might need to add some - learn how to here!2004 Volkswagen Jetta GL 2.0L 4 Cyl. Sedan
If your car is leaking a small amount of power steering fluid - see this video on how to fix the leak2004 Volkswagen Jetta GL 2.0L 4 Cyl. Sedan
Do you ever get into your friend's car and notice a bad smell? A dirty cabin air filter could be the culprit2004 Volkswagen Jetta GL 2.0L 4 Cyl. Sedan
Don't send mixed signals - if your turn signal doesn't blink, or blinks rapidly, you likely have a burnt out bulb2004 Volkswagen Jetta GL 2.0L 4 Cyl. Sedan