Coolant leaking in cab.... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

74Chevy74 · 03-16-2006, 01:48 AM

Ok I noticed some coolant leaking from the heater core in my cab, luckily the carpet was out for dynamat so it was easy to spot, I take it my heater core is going right?

If it does I guess I'll have to explore the vintage air route.....it never ends!

79GMC_OLDS · 03-16-2006, 02:05 AM

yeah that would be your heater core..its easy and cheap to replace so might as well do it now before it makes too much of a mess

EJC78 · 03-16-2006, 01:03 PM

that is funny to hear not because your misfortune, but because the same thing happened to me and I went the same route. The best thing about a Vintage Air set up is that the box in the cab is a whole lot less visable. Good luck.

72freak · 03-16-2006, 04:14 PM

heater core...$35 and a couple of hours

Zoerb · 03-17-2006, 12:53 AM

if you have messed with the lines in the firewall, one may be leaking inbetween the firewall and the heater core.

HotRod73 · 03-17-2006, 12:28 PM

try going to a small drug store and buying liquid glass... got some for a riviera to repair the blown head gasket, had a cracked heater core and i flushed radiator and put liquid glass in and it sealed it off and now its not cracked (for now, suppose to hold a long time) you have to go to the little independant drug stores to get it though, sometimes they have to order it, you can get some of that crap at walmart in the auto section but its not the real deal... just a suggestion

03-16-2006, 01:48 AM	#1
74Chevy74 Registered User Join Date: Nov 2005 Location: San Jose, California Posts: 167	Coolant leaking in cab.... Ok I noticed some coolant leaking from the heater core in my cab, luckily the carpet was out for dynamat so it was easy to spot, I take it my heater core is going right? If it does I guess I'll have to explore the vintage air route.....it never ends!

03-16-2006, 02:05 AM	#2
79GMC_OLDS Registered User Join Date: Feb 2006 Location: Ontario Posts: 145	Re: Coolant leaking in cab.... yeah that would be your heater core..its easy and cheap to replace so might as well do it now before it makes too much of a mess __________________ 79 GMC Sierra 5.9 cummins, nv4500

03-16-2006, 01:03 PM	#3
EJC78 No Life Like Low Life Join Date: Nov 2005 Location: Gilroy,CA Posts: 367	Re: Coolant leaking in cab.... that is funny to hear not because your misfortune, but because the same thing happened to me and I went the same route. The best thing about a Vintage Air set up is that the box in the cab is a whole lot less visable. Good luck. __________________ Eric 1978 Chevy Scottsdale 1960 Impala ZZ4 1965 Buick Riviera GS 2011 GMC Sierra Denali

03-16-2006, 04:14 PM	#4
72freak Rottenwood Garage Member Join Date: May 2005 Location: Marietta, Georgia Posts: 4,321	Re: Coolant leaking in cab.... heater core...$35 and a couple of hours

03-17-2006, 12:53 AM	#5
Zoerb Registered User Join Date: Dec 2005 Location: Wasilla Alaska Posts: 73	Re: Coolant leaking in cab.... if you have messed with the lines in the firewall, one may be leaking inbetween the firewall and the heater core. __________________ 2017 Tahoe Premier - Daily '99 Silverado 2500 Wife's whip- 2020 Equinox Premier

03-17-2006, 12:28 PM	#6
HotRod73 Registered User Join Date: Mar 2006 Location: Norman, Oklahoma Posts: 553	Re: Coolant leaking in cab.... try going to a small drug store and buying liquid glass... got some for a riviera to repair the blown head gasket, had a cracked heater core and i flushed radiator and put liquid glass in and it sealed it off and now its not cracked (for now, suppose to hold a long time) you have to go to the little independant drug stores to get it though, sometimes they have to order it, you can get some of that crap at walmart in the auto section but its not the real deal... just a suggestion



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