Question about 2009 Ford Mustang
LOOSE CAP LIGHT CAME ON BUT CAP WASNT LOOSE
The fuel system is is a closed-loop system for emissions purposes. There will normally be a slight amount of pressure in the system when in use. If the ECM does not detect that pressure, the most likely suspect is the fuel cap. Check the rubber o-ring seal on the gas cap. If there are many cracks, or a section that has broken out of it, this can cause the error. An OEM approved replacement cap will fix this. Otherwise, you will need to inspect the fuels system lines, as well as the vent lines from the tank for cracks or leaks.
Posted on Jan 01, 2014
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Posted on Jan 02, 2017
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