Exhaust freezing up?
Hello, I was wondering if anyone else has experienced this?
I have a ?15 Limited AWD, 3.6, and every spring/fall once the temp
gets to be around -10 to -15 (Celsius), it?ll fire up, but stall out immediately. Then won?t start at all. It?ll make a noise like a high pressure air leak coming from underneath. It will eventually start after a few hours of trying (shows no codes), even then I have to keep on the gas. With my wife on the throttle I looked underneath and could see exhaust coming out of every place it could between the engine and the muffler, nothing at all out of the tailpipe. It?ll smooth out eventually and run normal once it gets good and warmed up. I?m thinking it?s freezing up, since my wife drives it mainly to work at the school (a short trip, but with three kids each with instruments/sports stuff/ backpacks and stuff, walking isn?t in the cards most days. This time the day before it happened, I noticed the exhaust making a terrible gurgling sound, but coming off a string of night shifts, didn?t care. I didn?t notice there being drain or weep holes in the muffler. The dealer (closest one over a hour away), keeps telling me it can?t freeze, and to bring it in the next time it does it. Not helpful.
Anyone else experience this? Fixes? Can I just drill weep holes and hope for the best?
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