Those vents do need to be replaced, but I would expect a wet ceiling if they are the source. Check the roof top antenna to ensure the rubber boot is still installed and in good shape.
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Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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