Need help finding leak - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Rabid · 07-04-2002, 04:44 AM

Allright, I know this is a bit off but I need some advice on possible locations to search for this leak. I have a leak somewhere on the passenger side of my cab that allows water in. It somehow makes its way in and settles on the floor right at the base of the passenger kick panel. I've looked at the windshield seal and it is working perfectly. I removed the cowl and cleaned all the leaves and sh!t out of there plus made sure all is secure with the antenna area. I have run out of places to look with this leak. Any of you guys or gals find any other areas that water can enter the cab near this area?

hanssolo · 07-04-2002, 09:11 AM

rabid- I had leaks everytime it rained on both sides. The windshield gasket can be a nasty culprit. I used silicone sealer on the windshield gasket(glass and frame lips). I did same under cowling where ever there was any seams holes. Most seemed to be in the windshield gasket. It is fairly new but pre-owner probably did'nt use the sealer enuff or properly. I had to work the windshield gasket 4 times before I got rid of leaks. P.S. While under cowling I sprayed undercoating so it could'nt rust there any more.

MOTHERTRUCKERS · 07-04-2002, 09:38 AM

Lots of places to look on these trucks, close the door and roll up the window on that side and have someone wet it down outside with a slow trickle while your inside checking with a flashlight. Start low at heater box then go to top firewall lip seam then cowl seam then fender bolts at cowl and so on till you find the source. The drip rail front corner is usually prone to leaking down the inside of the windshield post also if it has not been resealed over the years. LOL

tom hand · 07-04-2002, 10:41 AM

Check the vent on that side. Reach your hand in there and pull out the 30 years of pine needles and leaves. Mine was rusted right agaist the seam in the floor and would leak.

Sinister · 07-04-2002, 09:13 PM

check your heater core as well...

07-04-2002, 04:44 AM	#1
Rabid Registered User Join Date: May 2001 Location: Honolulu, HI Posts: 1,237	Need help finding leak Allright, I know this is a bit off but I need some advice on possible locations to search for this leak. I have a leak somewhere on the passenger side of my cab that allows water in. It somehow makes its way in and settles on the floor right at the base of the passenger kick panel. I've looked at the windshield seal and it is working perfectly. I removed the cowl and cleaned all the leaves and sh!t out of there plus made sure all is secure with the antenna area. I have run out of places to look with this leak. Any of you guys or gals find any other areas that water can enter the cab near this area?

07-04-2002, 09:11 AM	#2
hanssolo Registered User Join Date: Sep 2001 Location: central Ill. USA Posts: 447	rabid- I had leaks everytime it rained on both sides. The windshield gasket can be a nasty culprit. I used silicone sealer on the windshield gasket(glass and frame lips). I did same under cowling where ever there was any seams holes. Most seemed to be in the windshield gasket. It is fairly new but pre-owner probably did'nt use the sealer enuff or properly. I had to work the windshield gasket 4 times before I got rid of leaks. P.S. While under cowling I sprayed undercoating so it could'nt rust there any more. __________________ 69 C10 longbed: 357c.i. /TH400/3.73s/AC/ beige primer/saving $ for paint ______________________________

07-04-2002, 09:38 AM	#3
MOTHERTRUCKERS Registered User Join Date: Dec 1999 Location: BRADENTON FLA Posts: 3,269	Lots of places to look on these trucks, close the door and roll up the window on that side and have someone wet it down outside with a slow trickle while your inside checking with a flashlight. Start low at heater box then go to top firewall lip seam then cowl seam then fender bolts at cowl and so on till you find the source. The drip rail front corner is usually prone to leaking down the inside of the windshield post also if it has not been resealed over the years. LOL __________________ Rest in Peace Ed. Thanks for all the good times.

07-04-2002, 10:41 AM	#4
tom hand CCRider Join Date: Feb 2000 Location: Olive Branch,MS,USA Posts: 2,232	Check the vent on that side. Reach your hand in there and pull out the 30 years of pine needles and leaves. Mine was rusted right agaist the seam in the floor and would leak. __________________ 72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS

07-04-2002, 09:13 PM	#5
Sinister Between Trucks... Join Date: Mar 2002 Location: Los Angeles, CA. Posts: 3,830	check your heater core as well... __________________ Beat it to fit, Paint it to match...



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