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Does anyone else have an issue with heat rolling in to the cab from the firewall area? I can't seem to locate where it's coming from exactly or how to prevent it/mitigate it. Help!
I have heat roll through my 03 as well, I found that there a big plug on the firewall right behind the brake booster that the PO cut a 1.5 inch hole through it, I covered it with duct tape til I can find a new plug.
