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2018 -Two mufflers in 4 years?

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13K views 73 replies 25 participants last post by  FozzieBalou  
Just to put in my 2 cents. A stuck open thermostat will never allow the exhaust gases to heat up the muffler and vaporize the water that condenses in the pipes. The water becomes highly acidic and corrodes the muffler. Solution replace the thermostat or read the OBD date and see if the engine reaches 190F.
 
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