Chevy S10 - GMC S15 and Sonoma - Wet floor when it rains - Car Forums

hey i have a 1991 gmc s15 an when it rains i get water on the drivers side floor an it is comeing from the firewall so u should check that on yours an u might find where the water is comeing in from

Replies to this message:

loveroadsters (Feb 21, 2007 4:06 am)
- liltrucker360 (Feb 21, 2007 4:13 am)

#7 of 14 Re: Wet floor when it rains [liltrucker360] by loveroadsters

Feb 21, 2007 (4:06 am)

Replying to: liltrucker360 (Feb 20, 2007 2:06 pm)

Did you pull up the carpet to see this? Or were you some how able to see the leak from the engine side?
Thanks!

Replies to this message:

liltrucker360 (Feb 21, 2007 4:13 am)

#8 of 14 Re: Wet floor when it rains [loveroadsters] by liltrucker360

Feb 21, 2007 (4:13 am)

Replying to: loveroadsters (Feb 21, 2007 4:06 am)

i seen it from the in side of the truck cab i see one spot on the drivers side floor that was wet an it was right up by the center humo in the cab but the side by the break was all nice an dry so check along there an it might help

#9 of 14 Re: Wet floor when it rains [loveroadsters] by s10trucker

Mar 26, 2007 (9:59 pm)

Replying to: loveroadsters (Dec 21, 2006 10:27 am)

I had the same problem with my 1993 S-10 pickup. I thought it was leaking through the windshield when it rained but it still did after sealing the whole thing up. So, I unscrewed and took off the plastic panels off the body(on the driver's side, left of the pedals)and there is a big hole in the metal body with a black patch on it that was coming off. I poured water on the corner of the windshield and yep that's where it was leaking in. Not sure why there is a hole there (maybe to lighten the truck?) and if it's in your S-10. I just know it was a pain in the rear figuring out the whole mess and I just patched it up with another patch and some adhesive. Problem solved.

Replies to this message:

#10 of 14 Re: Wet floor when it rains [s10trucker] by loveroadsters

Mar 27, 2007 (4:01 am)

Replying to: s10trucker (Mar 26, 2007 9:59 pm)

Thanks. That sounds like it might be it for me as well. We checked a couple other "common" sources for the same issue with no luck so hopefully when I get the carpet up this summer I will find it.
Thanks Again!!

#11 of 14 Re: Wet floor when it rains [loveroadsters] by drew_budr

Nov 17, 2010 (10:33 pm)

Replying to: loveroadsters (Dec 21, 2006 10:27 am)

i have this same problem with a 2000 gmc sonoma. i found that mine had been leaking where someone installed a sun deflector and tried to put the seal back on with blue goo, after a while the silicone got weathered and it started leaking.

#12 of 14 Re: Wet floor when it rains [s10trucker] by 99zr2

Apr 24, 2011 (6:28 pm)

Replying to: s10trucker (Mar 26, 2007 9:59 pm)

in the fire wall a windshield drain or slanted channel running from the passenger side of the cab to the drivers side,was created to get rid of water from the windshield (just under the cowling). tthe problem is usually due to a drain hole getting stopped up by leaves or other debris and letting the water sit and corrode through to the inside of te cab. remove the fender and use body sealer or even liquid nails to fill it in, this corrosion can also be caused by a build up of the sealant that gm uses on its pannels and "dams up" the water.

#13 of 14 Re: Rain water leaking in on to the passanger side floorbord only [emily7] by scharvey

Sep 18, 2011 (10:14 pm)

Replying to: emily7 (Jan 06, 2007 11:09 am)

My 97 S-10 had wet carpet on the driver side. Turned out to be two things. #1. The back glass was leaking at the driver side top corner. Looked like the headliner got stuck in the glass adhesive when assembled.
#2 The body seam on the driver side of the back of the cab wasn't caulked properly at the factory. Bead of sealer was an inch away frm the seam. Besides it being a quality disaster, I enjoyed driving it.

#14 of 14 Re: Wet floor when it rains [s10trucker] by fyre2624

Apr 24, 2013 (5:06 am)

Replying to: s10trucker (Mar 26, 2007 9:59 pm)

I have the same issue, If you do not mind can you be more specific in reference to the location of the plastic panels? Your assistance would be greatly appreciated.

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