Still getting water in '08 H2!!
#34
12-21-2020, 04:48 PM
I had a similar leak. I fixed it by getting glass adhesive and putting it on the front windshield - lower several inches - I pulled the rubber back - just barely enough to get the silicone adhesive in there, then I taped the windshield and rubber in place for several hours, then removed the tape and trimmed the excess adhesive. On the maintenance side, I went ahead and pulled back the weather stripping on all of my doors - gave them all a good clean, then added liquid rubber to a few sections. Additionally I got a step ladder, unscrewed all my roof lights, cleaned everything real good and resealed them with silicone. I also wiped down all of the rubber components with a good protective coating - something I use for interior and exterior plastics and rubber.
#36
12-21-2020, 05:55 PM
Silicone is also a total nightmare to remove if needed and to reseal - new silicone does not stick well to old silicone. Urethane based sealants are the way to go. That is also what car manufacturers use.
#38
12-21-2020, 08:21 PM
Urethane base sealants(5yr warranty) don't last as long as the silicone based sealants(20yr warranty). The trick is to remove the housing, clean, dry, reseal with silicone, let cure, then reinstall the housing. Works like a charm! 
#39
08-21-2023, 05:02 AM
@firmani99 did you ever get it figured out? mine too gets a PUDDLE of water just smack dab in the middle of the floorboards, i have watched water drip thru my overhead onstar unit, i have watched rain poor thru the grab bar, then it runs down side of dash between dash and door,,, there may be more going on withmine, i must find out where alll these drains are people are talking about, the roof liner is ruined, stained, hanging, and by the grab bars the fabric on liner is stained and ruined, horrible,,,,,, im lost with it
#40
08-21-2023, 08:29 AM
@firmani99 did you ever get it figured out? mine too gets a PUDDLE of water just smack dab in the middle of the floorboards, i have watched water drip thru my overhead onstar unit, i have watched rain poor thru the grab bar, then it runs down side of dash between dash and door,,, there may be more going on withmine, i must find out where alll these drains are people are talking about, the roof liner is ruined, stained, hanging, and by the grab bars the fabric on liner is stained and ruined, horrible,,,,,, im lost with it
- Under the Outside Corner Clearance Lights - The wiring harness must be resealed to the body of the truck
- Under Center Clearance Lights - You will need to add new foam gaskets
- Exterior Weather Stripping that goes up A-Pillar and across top of front and rear doors - you will need to ensure the weatherstripping is seated well along the curve where A-Pillar joins roof line
- Sunroof - Ensure drain tubes are properly connected to sunroof pan and are not clogged
- Cover concealing AC plenum under under front cowling - ensure it's intact and replace if necessary
- Windshield - Remove all trim as if you are replacing your windshield and reseal
- Body Seam Under Luggage rack track - you will need to remove track and plastic fascia to reseal body seam
