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elantra 2003
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  1. Maintenance & Care
    My P0420 CEL code came up again after replacing my downstream O2 sensor a few months back. There has been no diminished engine performance, but my gas mileage was really poor 18-20mpg combined. Also an oil leak has flared up in front of the cylinder head by the valve cover. Even though I...
  2. Appearance
    This all started because last week I had a leak in my bypass hose and all of my coolant shot out all over my transmission and bay leaving a bad odor in my cabin while driving. First I did a full engine bay cleaning, this was not as difficult as I thought. I took out the battery (12mm) and...
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