The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Help: 84 GMC 3500 Help me find water leak source

donut · 04-30-2010, 06:45 AM

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

04-30-2010, 06:45 AM	#3
donut Registered User Join Date: Aug 2009 Location: S.C. Posts: 1,593	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 __________________ '86 C-30 dually, 454/tbh400 '73 K-20 350/350/205 (sold ) I'm kinda like duct tape- no real purpose, but handy to have around.