interior leak - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**old Rusty C10** · 04-04-2010, 05:44 PM

Ok i found water on the floor on the passenger side the carpet is wet but not soaked and its right in the corner under the dash by the trans hump. I know its 99,99% the heater core but is there anyplace else these suckers leak? pr something else to inspect before i spring for the core?

Myself · 04-06-2010, 02:21 PM

A/C drain hole may be blocked. Causing condensate from the evaporator to back-up and drip inside. Does it smell like anti-freeze?

68C15 · 04-08-2010, 07:04 AM

these are not known for having exterior leaks but I would still check. remove the glovebox and watch while someone hoses it down.

the evaporator drain is a bit** to get at, you will need to go at it from underneath (on a hoist)

IIRC rain water does run through there, you guys had a bit of rain lately right?

**michael bustamante** · 04-08-2010, 11:37 AM

boy I hope its not the heater core! I just replaced mine in my grandfather 94 s-10 and I poray I never have to do that again!, I was thinking condensor drain line is plugged also. have you been running the a/c?

04-04-2010, 05:44 PM	#1
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,313	interior leak Ok i found water on the floor on the passenger side the carpet is wet but not soaked and its right in the corner under the dash by the trans hump. I know its 99,99% the heater core but is there anyplace else these suckers leak? pr something else to inspect before i spring for the core? __________________ 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!!

04-06-2010, 02:21 PM	#2
Myself Registered User Join Date: Oct 2005 Location: Northern Arkansas Posts: 1,144	Re: interior leak A/C drain hole may be blocked. Causing condensate from the evaporator to back-up and drip inside. Does it smell like anti-freeze?

04-08-2010, 07:04 AM	#3
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	Re: interior leak these are not known for having exterior leaks but I would still check. remove the glovebox and watch while someone hoses it down. the evaporator drain is a bit** to get at, you will need to go at it from underneath (on a hoist) IIRC rain water does run through there, you guys had a bit of rain lately right?

04-08-2010, 11:37 AM	#4
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,862	Re: interior leak boy I hope its not the heater core! I just replaced mine in my grandfather 94 s-10 and I poray I never have to do that again!, I was thinking condensor drain line is plugged also. have you been running the a/c? __________________ 1967custom



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