95 Chevy water in passenger floor board

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snappchevy

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Tennessee
First Name
Clay
Truck Year
1972
Truck Model
K10
Engine Size
350
Hey all, my 1995 Chevy K1500 has leaking water into the passenger floorboard. Can’t find anywhere it could be leaking from. It hasn’t rained and the floorboard does not smell like antifreeze. Any info or suggestions would be greatly appreciated, thanks.
 

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Catbox

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First Name
Peter
Truck Year
1979
Truck Model
C20 Silverado Camper Special
Engine Size
461
We have the same thing on our 1995 Sub.
My son said he found on a forum where some said it was coming from the cowl area.
I am not entirely sure where, but rain water leaks in...
 

CountKrunk

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SW VA
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Count
Truck Year
1984
Truck Model
C20 Custom Deluxe 3+3
Engine Size
v8 350
On mine the hoses are loose in the fw
 

85K304SPD

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Las Cruces, NM
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Richard
Truck Year
1985
Truck Model
K30
Engine Size
402
Heater core. Mine was dripping out of the bottom of the cab. I had to loop the heater hoses... for now... Its warm enough, no heater necessary for another 6 months. The carpet is dry but kind of oily now.
 

PrairieDrifter

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Mason
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84,79,77,76,70,48
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Suburban k10, bonanza k10, k30, k20, c10, gmc 1/2ton
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350, 350, 350, 350, 350, 350
If you've used the a/c or defrost I would check the drain tube for sure. Possibly modify. I've seen some cases where just the right wind will cause the water to shoot right back up into the hose or find a way through the firewall.

If not, with no rain, its the heater core.
 

snappchevy

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Location
Tennessee
First Name
Clay
Truck Year
1972
Truck Model
K10
Engine Size
350
I should’ve mentioned the truck has the A/C option, but it is currently not working. I’ve checked the condensation drain and the liquid is not sticky.
 

CountKrunk

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Location
SW VA
First Name
Count
Truck Year
1984
Truck Model
C20 Custom Deluxe 3+3
Engine Size
v8 350
Mine is only when it rains. Nothing obvious in the cowl area but i still need to test to make sure its draining
 

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