Water comming in under the dash - The 1947 - Present Chevrolet & GMC Truck Message Board Network

GMCjunkie · 08-04-2011, 08:53 PM

Ive been having to use the Burb the past couple days after our Toyota was crunched by a semi on our way to Texas last month. So, Ive had to drive it in the rain a couple times. I have water running in on both sides INSIDE of my truck under the dash. Where the heck is it comming in at? Has anyone else had this problem?
Thanks
junk

oldblue1968chevy · 08-04-2011, 08:58 PM

inner cowl area is rusted/rusted thru, maybe bad windshield seal..

Andy4639 · 08-04-2011, 10:47 PM

Bad gasket around windsheild. Comes in the lower corner then drips down through the drip hole on each side of the dash. You can seal the gasket up with a good sealer but a good windsheild man want need to!

gonnuts · 08-04-2011, 11:20 PM

You can seal the gasket up with a good sealer but a good windsheild man want need to![/COLOR][/B]

[/QUOTE]

Ya what he said ????

bosco200 · 08-05-2011, 11:38 AM

Quote:

Originally Posted by andy4639

bad gasket around windsheild. Comes in the lower corner then drips down through the drip hole on each side of the dash. You can seal the gasket up with a good sealer but a good windsheild man want need to!

x2

eagleuh1 · 08-05-2011, 07:04 AM

I had 2 pinholes, actually bigger than pinholes, in the cowl floor from leaves sitting in the cowl. Found them one day working under the dash looking up and saw 2 streams of sunlight coming in. Sanded them down, but couldn't get tig torch in to weld. I used some of my sticky sound deadening on the inside of cab to seal up temporarily. Works so far ( 1 year). On another note, why do our dashes have drip holes on each side?

72freak · 08-05-2011, 07:31 AM

I would first take the cowl off and look under there. I bet thats where its at.

The way I test is I get someone to lay in the floor and I fill the cowl with water and see if it leaks.....It may take a while.....if I dont see any water I then broaden my water placement to the top of the windshield and let it run down. If it starts to leak its the gasket.

GMCjunkie · 08-05-2011, 08:19 AM

Thanks guys, figured it might be the cowl, but I just got it out of the shop and any rust holes were "supposed" to be fixed, but then so were a lot of other things. Also, Their glass guy broke my windshield putting it back in, (HE broke it and charged ME for a new one),so mabey Mr. Professionalglassguy didnt seal it good. Ill try 72freaks system.

THANKS!!!!!
junk

08-04-2011, 08:53 PM	#1
GMCjunkie Dude...I'm a CHICK Join Date: Jul 2000 Location: Lakeland Georgia Posts: 6,192	Water comming in under the dash Ive been having to use the Burb the past couple days after our Toyota was crunched by a semi on our way to Texas last month. So, Ive had to drive it in the rain a couple times. I have water running in on both sides INSIDE of my truck under the dash. Where the heck is it comming in at? Has anyone else had this problem? Thanks junk __________________ ~~~~~~~~~~~~~* "The unexamined life is not worth living" -Socrates ~~~~~~~~~~~~~* '71 GMC Suburban 4x4

08-04-2011, 08:58 PM	#2
oldblue1968chevy Grandpa in the rustmobile... Join Date: Nov 2008 Location: Spokane WA/Viola TN Posts: 11,422	Re: Water comming in under the dash inner cowl area is rusted/rusted thru, maybe bad windshield seal.. __________________ John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4

08-04-2011, 10:47 PM	#3
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Water comming in under the dash Bad gasket around windsheild. Comes in the lower corner then drips down through the drip hole on each side of the dash. You can seal the gasket up with a good sealer but a good windsheild man want need to! __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

08-04-2011, 11:20 PM	#4
gonnuts Registered User Join Date: Sep 2010 Location: Langdon, Ab Posts: 348	Re: Water comming in under the dash You can seal the gasket up with a good sealer but a good windsheild man want need to![/COLOR][/B][/QUOTE] Ya what he said ???? __________________ 67 Chev SWB, 400 SB .040 over, vortec heads, comp XE268 cam, performer EPS intake, edel. 650 AVS carb, 700R4

08-05-2011, 07:04 AM	#6
eagleuh1 Registered User Join Date: Jul 2009 Location: Russellville, Arkansas Posts: 1,699	Re: Water comming in under the dash I had 2 pinholes, actually bigger than pinholes, in the cowl floor from leaves sitting in the cowl. Found them one day working under the dash looking up and saw 2 streams of sunlight coming in. Sanded them down, but couldn't get tig torch in to weld. I used some of my sticky sound deadening on the inside of cab to seal up temporarily. Works so far ( 1 year). On another note, why do our dashes have drip holes on each side?

08-05-2011, 07:31 AM	#7
72freak Rottenwood Garage Member Join Date: May 2005 Location: Marietta, Georgia Posts: 4,321	Re: Water comming in under the dash I would first take the cowl off and look under there. I bet thats where its at. The way I test is I get someone to lay in the floor and I fill the cowl with water and see if it leaks.....It may take a while.....if I dont see any water I then broaden my water placement to the top of the windshield and let it run down. If it starts to leak its the gasket. __________________ 2004 Chevrolet Suburban C1500 2001 Chevrolet 2500HD Crew 6.0 1999 Harley Davidson Electra Glide 1972 Chevrolet C-20 Custom Camper "Dump Truck" 1972 Chevrolet C-20 Suburban "Big Green" 1969 Chevrolet C-50 Wedge Hauler "Leonidis" 1966 C-10 2x4 short fleet 327 4 speed "Race Truck" 1952 Plymouth Cranbrook "Rican" (my grandfathers) 1931 Ford Model A Coupe "Black Beauty" 1930 Ford Model A truck "Club Cab" 4x4 Rottenwood Garage and Speed Shop.....where everything must be racy! *It's not just a hobby..It's a LIFESTYLE!!!* Thanks for nothing Barrett-Jackson You cant fix stupid or teach accountability! Time wasters, looky Lous and tire kickers are everywhere!

08-05-2011, 08:19 AM	#8
GMCjunkie Dude...I'm a CHICK Join Date: Jul 2000 Location: Lakeland Georgia Posts: 6,192	Re: Water comming in under the dash Thanks guys, figured it might be the cowl, but I just got it out of the shop and any rust holes were "supposed" to be fixed, but then so were a lot of other things. Also, Their glass guy broke my windshield putting it back in, (HE broke it and charged ME for a new one),so mabey Mr. Professionalglassguy didnt seal it good. Ill try 72freaks system. THANKS!!!!! junk __________________ ~~~~~~~~~~~~~* "The unexamined life is not worth living" -Socrates ~~~~~~~~~~~~~* '71 GMC Suburban 4x4



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