water on pass side floor mat/glovebox?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

88Jimmy4x4 · 08-24-2004, 04:31 PM

I just bought a 1990 Burb thats very clean in Round Rock Texas yesterday and it rained on the way home. After about 45min of rain I noticed water dripping on the pass side floor mat and when I got home there was a few drips in the glove box.........wtf caused this?

heres the burb I bought

ElGracho · 08-24-2004, 04:37 PM

Leaky windshield gasket.

Grim Reaper · 08-24-2004, 04:57 PM

If your sure it's water then check the cowl box at the base of the windsheild , If you life the hood you will see a seam that runs accoss the fire wall. The seam forms the cowel box. Sometimes the sealent used in that seam will fail where it's up under the ACbox and it will drip into the heater box on the inside and drip behind the glove box. If the drain is plugged up on the A/C you can get a dip in the same area. A bad heater core will also drip there.

If you pull the windsheild wiper ares off and under the hood will be a few screws and then you can get the grill peice of and get into the cowel box. Check for rust and clean it up. Duracolor or something other brand name sells a spray in bed liner in a can. It's thick paint. They carry it at Autzone. That will seal the seam up but it's a bogger to worm the can in there.

Greenlee · 08-24-2004, 05:16 PM

Mine leaked on the seam Grim Reaper described. However, I didn't get any water in the glove box, just on the floor. I used some thick RTV seam sealer to seal it up. I also had to weld in a new floor panel in the cab as the leak had caused the floor to rust out. I have heard of the windshield gasket leaking too. I would get a water hose and try to isolate where the water is coming from.

88Jimmy4x4 · 08-24-2004, 05:55 PM

Thanks guys, I drove it today (sunny) with the AC on the entire time and never had any water inside so Im guessing its rain related.

I will try the water hose test and see what happens, but I will check those places mentioned above.

The dripping yesterday was where your left foot would be when sitting on the pass side if that helps

08-24-2004, 04:31 PM	#1
88Jimmy4x4 Registered User Join Date: Oct 2003 Location: houston, texas Posts: 1,974	water on pass side floor mat/glovebox?? I just bought a 1990 Burb thats very clean in Round Rock Texas yesterday and it rained on the way home. After about 45min of rain I noticed water dripping on the pass side floor mat and when I got home there was a few drips in the glove box.........wtf caused this? heres the burb I bought __________________ 2008 Silverado Z71 RCSB 1991 GMC Jimmy 4x4 1976 GMC Sierra C15 SWB

08-24-2004, 04:37 PM	#2
ElGracho Gentleman Jim Driver Join Date: Nov 2002 Location: Poulsbo, WA Posts: 1,550	Leaky windshield gasket. __________________ Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed

08-24-2004, 04:57 PM	#3
Grim Reaper Registered User Join Date: Jul 2001 Location: Atlanta GA Posts: 1,704	If your sure it's water then check the cowl box at the base of the windsheild , If you life the hood you will see a seam that runs accoss the fire wall. The seam forms the cowel box. Sometimes the sealent used in that seam will fail where it's up under the ACbox and it will drip into the heater box on the inside and drip behind the glove box. If the drain is plugged up on the A/C you can get a dip in the same area. A bad heater core will also drip there. If you pull the windsheild wiper ares off and under the hood will be a few screws and then you can get the grill peice of and get into the cowel box. Check for rust and clean it up. Duracolor or something other brand name sells a spray in bed liner in a can. It's thick paint. They carry it at Autzone. That will seal the seam up but it's a bogger to worm the can in there. __________________ Grim-Reaper 70 Pontiac LeMans Sport Convertible, worlds longest resto in progress Looking for 71-72 2wd Blazer or Jimmy Project

08-24-2004, 05:55 PM	#5
88Jimmy4x4 Registered User Join Date: Oct 2003 Location: houston, texas Posts: 1,974	Thanks guys, I drove it today (sunny) with the AC on the entire time and never had any water inside so Im guessing its rain related. I will try the water hose test and see what happens, but I will check those places mentioned above. The dripping yesterday was where your left foot would be when sitting on the pass side if that helps __________________ 2008 Silverado Z71 RCSB 1991 GMC Jimmy 4x4 1976 GMC Sierra C15 SWB

08-24-2004, 05:16 PM	#4
Greenlee Registered User Join Date: Jun 2004 Location: El Lago, TX Posts: 1,668	Mine leaked on the seam Grim Reaper described. However, I didn't get any water in the glove box, just on the floor. I used some thick RTV seam sealer to seal it up. I also had to weld in a new floor panel in the cab as the leak had caused the floor to rust out. I have heard of the windshield gasket leaking too. I would get a water hose and try to isolate where the water is coming from.



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