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Mis-firing on cold start
Just a quick question: 1999 Montana....3.4L....I have a mis-fire in the engine, just 1 cylinder but after it warms up it runs fine. I thinking it may be an intermitent coil pack. When it mis-fire's the service engine soon light is blinking, but when it clears up the engine light is on steady. If anyone can comment, please let me know.
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