Just replaced the coolant hoses on a 2006 3800 engine. I had to remove two bolts holding the coil pack plate and set the assembly aside temporarily to access hose. Put it back in place and now have rough running and a visible and audible small spark at base of # 1 rubber plug and the base- it's externally arcing to a small bolt. Enlarge the pic and you can see it. Check engine light is now on. Obviously I loosened something there- tried pushing the rubber boot hard, but still the same. What did I loosen or upset to cause it? You can see the small spark just above the #1 cap base and that small bolt. How to fix?
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