During rain or car wash floor boards get soaked on driver and passenger side. Any suggestions? It's a 1997 Chevy Blazer LT 4x4 w A/T 4.3 L.

 

Are your door hinges worn bad, so that water can get in through the seals?

 

Also check the bulk head where the heater hoses enter into the cab.

 

Door hinges r pretty much the same way. Doors seem to close ok. Looking around those areas I notice the door seal on pax side was loose. Other side appears the same way. Looks like the silicone has deteriorated. Ill clean it up, put new caulk and report back. Thx.

 

pull the carpet back i bet you have a hole in the floor boards. my blazer did this on both side exact same problem only wet when it rains or in auto car wash