Water on drivers floor

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justhorns

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Location
Denver
First Name
Lee
Truck Year
81
Truck Model
C10
Engine Size
250
Anyone used compressed air to clean these bottom to top?
 

Snoots

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Roger
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1973
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Jimmy Sierra
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350 w/203
Yep. Worked like a charm but I still had to crawl underneath to confirm nothing was trapped.
 

Ohearchai

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Martin
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1990
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V1500 Suburban
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5.7
been a minute since I've done it, but if you fed something down from the cowl and it came out there, that's gotta be it. I just remember not being able to fit my hands in there very well and using a stick. I kept flushing water from the cowl to push stuff down and using the stick to help pull stuff down and out. and then flushing again, and repeating.
Ya I was able to run a piece of taped wire (so I could see it) from the top down and also from the bottom up. Carpet backing is toast, so next step is I might as well do the front carpet. Thanks for the help.
 

Geoduck

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PNW
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Dan
Truck Year
1985
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C10
Engine Size
305
Thank you everyone for this useful information exactly what I needed for my new to me 85.
Both passenger and driver floors wet and some rust. Now I know what to do.
May I ask what the best seam seal product you all suggest?
 

MikeB

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North Texas
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Mike
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1969
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C10
Engine Size
355
My 82 had that problem due to poorly applied seam sealer under the cowling. Over the years, the leaks rusted and ruined the fuse panel.

I like SEM seam sealer. The nozzle screws on. One is included with the sealer, and you can buy a bag of new ones for cheap at Amazon.
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Water leak locations:

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