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Old 04-30-2010, 06:45 AM   #3
donut
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Join Date: Aug 2009
Location: S.C.
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Re: Help: 84 GMC 3500 Help me find water leak source

Any little pinholes in the cowl area (up against the firewall)? Cab lights?
I had a seal on a cab light that was leaking and it ran down the windshield/door post and collected by the vent area.

When the windshield was changed, did you get to inspect the windshield channel itself? Mine had 1/2" wide by 10" long holes rotted into it instead of the little "weep" holes
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