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p0678 check engine light
I keep getting this error. My Edge insight CTS says it's glow plug 8. The problem here is I only get the check engine light in warm weather 60+ degrees. During the winter even in 20 degree weather i never got the check engine light. This happened last summer too. Why would glow plug throw an error only in warm weather but be fine in cold weather?
Join Date: Apr 2013
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This is my first summer with a 6.0 and i just ran the same code. What did you have to do last summer?