This is one of those PITA stories. Last winter my carpet was soaked after every good rain. It was so bad that I kept a towel under the floor mat on the driver's side. I would exchange the towel for a dry one every day.
It rains a lot in Oregon, but when it finally let up enough that I could do some testing last spring, I determined that the leak was at the firewall, under the left front quarter panel. What a pain - and this was after going through all of the usual stuff like re-calking the rain gutter and resealing the windshield.
Anyway, fearing the coming rain this fall I dove in. I needed to replace the brake booster anyway. I spent one evening tearing the truck apart, the second fixing the leak and replacing the booster. Tonight I finished reassembly.
There was a small hole under a metal seam on the firewall. Almost looks deliberate.
The photos show the area in question after sanding and priming, and a close-up of the hole. After taking the photos I resealed every seam in the area with 3M body seam sealer.
Hope this will be useful info.
It rains a lot in Oregon, but when it finally let up enough that I could do some testing last spring, I determined that the leak was at the firewall, under the left front quarter panel. What a pain - and this was after going through all of the usual stuff like re-calking the rain gutter and resealing the windshield.
Anyway, fearing the coming rain this fall I dove in. I needed to replace the brake booster anyway. I spent one evening tearing the truck apart, the second fixing the leak and replacing the booster. Tonight I finished reassembly.
There was a small hole under a metal seam on the firewall. Almost looks deliberate.
The photos show the area in question after sanding and priming, and a close-up of the hole. After taking the photos I resealed every seam in the area with 3M body seam sealer.
Hope this will be useful info.
