I have never used any kind of sealer in a car. I can understand your frustration, but it is likely it could be your evap if you can't find the leak with dye and etc.. That is the part that is inside the dash. It is your choice, keep chasing the leak, find it and fix it right, or put a band aid on it. It might work, but then again it may not or even cause further problems. Just keep in mind that it is a temporary fix, and the less you use the beter. Good luck!
Brian

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Brian W. Heitman

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