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01-14-2020, 12:53 PM
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#1 |
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Registered User
 Join Date: Jan 2018
Location: Durham, North Carolina
Posts: 782
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Chasing Cab Leaks
I am trying to chase a couple leaks. The first is on the DS, dripping out from under dash down kick panel. The other is on the PS, puddling on dash and coming through the weep hole in dash and into PS floorboard. I have put window weld on the windshield side and cab side of the windshield seal multiple times (about 6-8" across top, down side, and about 6-8" across bottom). Any other thoughts on where these may be coming from?
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My Daily Driver Build: http://67-72chevytrucks.com/vboard/s...d.php?t=755668 |
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01-14-2020, 01:26 PM
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#2 |
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Senior Member
Join Date: Jan 2013
Location: North Charleston SC
Posts: 504
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Re: Chasing Cab Leaks
Check your wiper motor seal.
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01-14-2020, 01:50 PM
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#3 |
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Registered User
Join Date: Feb 2019
Location: Nor Cal
Posts: 822
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Re: Chasing Cab Leaks
Seal all the way around the glass to windshield seal and all the way around the Windshield seal to body.
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1968 C20 Fleetside 396 4sp PS PB AC CST . https://www.youtube.com/watch?v=RWK8GgWD4uA |
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01-14-2020, 05:39 PM
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#4 |
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Registered User
Join Date: Feb 2018
Location: Doland SD
Posts: 836
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Re: Chasing Cab Leaks
If you take your cowl panel off you will see a seem. Try filling it with new sealer. That whare the leak under the dash comes from.
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 ( second times the charm) 71 gmc c15 307 sbc 373 rear gears positrac sm 465 trans. ( not listed on spid but is original )94 chevy k1500 350 tbi 373 rear gears 4l60e one wheel peel. Gutless 07 gmc sierra classic rcsb 4.3 lt 5 speed w/t 04 chevy Silverado 1500 ext cab 5.3 4l60e. 81 chevy Scottsdale k10 muncie sm465 Np208 10 bolt 8.2 ( Old Green) |
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01-14-2020, 06:05 PM
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#5 | |
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Moderator
 
Join Date: Jun 2017
Location: Cherryville, NC
Posts: 2,204
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Re: Chasing Cab Leaks
Quote:
and scrape out as mush old sealer first....doing so lets the new sealer push further int the seam....make sure you push the sealer into the seal...use disposable gloves and have FUN !!!! 
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Family and country before all others... 2006 Chevy Silverado (Daily Driver) 2012 Chevy Equinox 
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01-14-2020, 11:02 PM
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#6 |
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Registered User
Join Date: Jul 2015
Location: 2nd left past the stump on a dirt road.
Posts: 2,629
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Re: Chasing Cab Leaks
Looking at your build thread it appears you did not have much cab repair to do. There are hidden areas under the cowl, and under the cowl sheet metal cover. That area is very problematic as I am going through the same thing.
Looks like you do not have the chrome trim windshield, that causes another issue. 3M WindoWeld. Both on the glass to gasket side and gasket to metal side. Take a look at this thread: http://67-72chevytrucks.com/vboard/s...d.php?t=484773 |
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01-15-2020, 01:27 PM
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#7 |
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Registered User
Join Date: Jan 2018
Location: Durham, North Carolina
Posts: 782
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Re: Chasing Cab Leaks
I know about the seams vertically from the bottom of the windshield down into the cowl, what other seams are there once the cowl panel is removed...a horizontal seam I suppose? This could be the cause of my DS leak but the PS is either windshield or drip rail since it is pooling on the dash. Been working on fixing these for a month or so, lots of time caulking and recaulking.
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My Daily Driver Build: http://67-72chevytrucks.com/vboard/s...d.php?t=755668 |
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01-16-2020, 01:22 AM
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#8 |
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Registered User
Join Date: Jul 2015
Location: 2nd left past the stump on a dirt road.
Posts: 2,629
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Re: Chasing Cab Leaks
Chances are if its pooling on the dash its getting by the windshield gasket. I have the same issue, and am checking for other issues/solutions.
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