This is topic 03 GT misfire and code p0307 in forum Tech Talk at Northern California Ford Owners .
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Posted by javier (Member # 547) on
:
I started to get a misfire about a week ago so I went ahead and changed plugs oil and regular maintinance work on it. Now the car runs worse, I get a misfire when the engine has a load on it. While its idleling its fine but when i drive it misfires and now i have a P0307 code telling me a misfire on #7. Side note I have a build up of a yellow/off white substance on the driver side head and when i took off the coil on plug it was milky yellow/off white crap in the upper spark plug...
Posted by Blind (Member # 3052) on
:
move the COP to another cylinder, clear the code, and see if it follows, if so that COP is bad.
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