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Running Rough when Wet

  

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Hi Scotty,

  2009 Dodge Grand Caravan. 3.3L V6, 365,000km. Running strong and smooth until I go through a car wash or accidentally run through a puddle. After which it starts running rough until it dries up.

No codes tripped. Where should I start? Thank you!


1 Answer
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Replace the spark plug wiring. 


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