noticed water in pass side when it rains... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jasonroman · 11-03-2010, 07:41 AM

i have an 85 gmc truck and noticed that when it rains, sometimes i see a dip mark of water on the inside of truck. passenger side, by kick panel. any one have any insite on where and why?
thanks in advance.

tucsonjwt · 11-03-2010, 08:12 AM

In my case, it was a windshield seal problem.
My 83 had a worn out rubber seal - replaced and leak went away.
My 76 had a defect in the sheet metal around the windhield opening. The sheet metal was raised up at the upper outside corner, causing the windshield seal not to seat properly. I beat down that raised up area and the windshield seal fit properly.
Suggest that you lift up the carpeting at the kick panel and make sure that you do not have rust forming in the floor at the kick panel wall. A leak can collect under the carpet and rot the floor out without you noticing it. My 76 had to have the floor cut out and a piece welded in because of this - on a otherwise rust free AZ truck.
If you have the windshield seal replaced, make sure you ask the installer to let you look at the opening before the seal is installed, so you can check to see that the opening is flat and smooth. Most windshield shops will never look at this, but the body shops I have talked to say this is a common problem with square bodies, especially 70s vintage.

jasonroman · 11-03-2010, 08:15 AM

i actually had the windshield done a week after purchasing this truck...4 or 5 mths back. kid said area was a bit rusty, but not too bad. should i now have to take window out?

blackbeaSSt · 11-03-2010, 08:57 AM

jason, join the crowd!

http://67-72chevytrucks.com/vboard/s...d.php?t=423766

jasonroman · 11-03-2010, 09:06 AM

thanks. was pretty sure i was not the only one with this issue. my 82 did the same thing., but i got rid of truck before tracing problem down.

blackbeaSSt · 11-03-2010, 09:08 AM

Quote:

Originally Posted by jasonroman

thanks. was pretty sure i was not the only one with this issue. my 82 did the same thing., but i got rid of truck before tracing problem down.

i put the wiper cowl on since i made that thread and i think that has helped a little. not 100%, but it did help.

**old Rusty C10** · 11-03-2010, 09:46 AM

there are several places these leak... either around the cowl , around the windshield, or mine leaked cause the door seals were shot

swb85 · 11-03-2010, 10:35 AM

Quote:

Originally Posted by old Rusty C10

there are several places these leak... either around the cowl , around the windshield, or mine leaked cause the door seals were shot

Mine was the door seals too, it would drain off the drip rails and run right down through the door seal and drip straight down on the carpet. Rusted several holes in my floor.

nikwho · 11-03-2010, 01:06 PM

I finally pinned my leak down when I was putting new carpet in the truck and didn't want it to get wet. A second leak started on the passenger side after the one on the drivers side. My leaks were from the vents in the kick panels. I pulled them both out and it was obvious where the water was coming in. I completely removed the original gaskets, cleaned them all up and used silicone. I let it set up a little bit before installing, but didn't let it dry completely. I'm sure it will be a bear to get them out if i need to pull them for anything again, but it stopped my leaks! Good luck!
Nik

tucsonjwt · 11-03-2010, 01:51 PM

I would remove your glove box and use a flashlight and inspection mirror to look for a leak while a small flow of water from a hose runs at various locations along the windshield seal. If you determine that the seal is leaking, then your installer should remove, look for defect, reseal, reinstall your windshield without cost to you, since he should guarantee his work.
If the seal is not leaking, then follow the advice of the others posting here.

11-03-2010, 07:41 AM	#1
jasonroman Registered User Join Date: Jul 2008 Location: sayreville nj Posts: 1,072	noticed water in pass side when it rains... i have an 85 gmc truck and noticed that when it rains, sometimes i see a dip mark of water on the inside of truck. passenger side, by kick panel. any one have any insite on where and why? thanks in advance.

11-03-2010, 08:12 AM	#2
tucsonjwt Registered User Join Date: Jul 2007 Location: Tucson, AZ Posts: 3,189	Re: noticed water in pass side when it rains... In my case, it was a windshield seal problem. My 83 had a worn out rubber seal - replaced and leak went away. My 76 had a defect in the sheet metal around the windhield opening. The sheet metal was raised up at the upper outside corner, causing the windshield seal not to seat properly. I beat down that raised up area and the windshield seal fit properly. Suggest that you lift up the carpeting at the kick panel and make sure that you do not have rust forming in the floor at the kick panel wall. A leak can collect under the carpet and rot the floor out without you noticing it. My 76 had to have the floor cut out and a piece welded in because of this - on a otherwise rust free AZ truck. If you have the windshield seal replaced, make sure you ask the installer to let you look at the opening before the seal is installed, so you can check to see that the opening is flat and smooth. Most windshield shops will never look at this, but the body shops I have talked to say this is a common problem with square bodies, especially 70s vintage.

11-03-2010, 08:15 AM	#3
jasonroman Registered User Join Date: Jul 2008 Location: sayreville nj Posts: 1,072	Re: noticed water in pass side when it rains... i actually had the windshield done a week after purchasing this truck...4 or 5 mths back. kid said area was a bit rusty, but not too bad. should i now have to take window out?

11-03-2010, 08:57 AM	#4
blackbeaSSt Registered User Join Date: Sep 2010 Location: Anderson, SC Posts: 325	Re: noticed water in pass side when it rains... jason, join the crowd! http://67-72chevytrucks.com/vboard/s...d.php?t=423766

11-03-2010, 09:06 AM	#5
jasonroman Registered User Join Date: Jul 2008 Location: sayreville nj Posts: 1,072	Re: noticed water in pass side when it rains... thanks. was pretty sure i was not the only one with this issue. my 82 did the same thing., but i got rid of truck before tracing problem down.

11-03-2010, 09:46 AM	#7
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,310	Re: noticed water in pass side when it rains... there are several places these leak... either around the cowl , around the windshield, or mine leaked cause the door seals were shot __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

11-03-2010, 01:06 PM	#9
nikwho Registered User Join Date: Apr 2010 Location: Flagstaff, AZ Posts: 974	Re: noticed water in pass side when it rains... I finally pinned my leak down when I was putting new carpet in the truck and didn't want it to get wet. A second leak started on the passenger side after the one on the drivers side. My leaks were from the vents in the kick panels. I pulled them both out and it was obvious where the water was coming in. I completely removed the original gaskets, cleaned them all up and used silicone. I let it set up a little bit before installing, but didn't let it dry completely. I'm sure it will be a bear to get them out if i need to pull them for anything again, but it stopped my leaks! Good luck! Nik __________________ '59 Apache - 383" SBC/TH-350 '68 GMC - BBC/TH400

11-03-2010, 01:51 PM	#10
tucsonjwt Registered User Join Date: Jul 2007 Location: Tucson, AZ Posts: 3,189	Re: noticed water in pass side when it rains... I would remove your glove box and use a flashlight and inspection mirror to look for a leak while a small flow of water from a hose runs at various locations along the windshield seal. If you determine that the seal is leaking, then your installer should remove, look for defect, reseal, reinstall your windshield without cost to you, since he should guarantee his work. If the seal is not leaking, then follow the advice of the others posting here.



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