ConcoursMustang Forums

Restoring - General discussions that apply across many different years and models => Drivetrain => Topic started by: grimmnar on June 14, 2017, 08:15:16 PM

Title: 1966 GT w/ Factory Air - Radiator Fluid Appearing on Passenger Floor Mat
Post by: grimmnar on June 14, 2017, 08:15:16 PM
So, I've recently become the owner of a 1966 GT (6T07A272766)  (my only other 'Mustang' being a 76 Ghia my Sophomore year of college a few decades back)

The car is in fairly decent shape, with quite a few little things to be done to make it 'presentable' (i'd like to make her as close to possible to the way she came from the factory)

Today i was taking her out, and noticed the appearance of some antifreeze on the floor mat of the passenger side.  So since I'm basically a rookie in the Mustang world, before I dove in blindly, I figured I would best ask first and get some opinions on what to check first, second and so on ..

Thanks in advance for any advice, it is appreciated !
Title: Re: 1966 GT w/ Factory Air - Radiator Fluid Appearing on Passenger Floor Mat
Post by: krelboyne on June 14, 2017, 09:08:57 PM
Heater core, or hoses leading to it.
Title: Re: 1966 GT w/ Factory Air - Radiator Fluid Appearing on Passenger Floor Mat
Post by: J_Speegle on June 14, 2017, 10:38:37 PM
Heater core, or hoses leading to it.

Yep
Title: Re: 1966 GT w/ Factory Air - Radiator Fluid Appearing on Passenger Floor Mat
Post by: midlife on June 14, 2017, 10:52:48 PM
You sure it was antifreeze and not condensation from the AC unit drain hose?
Title: Re: 1966 GT w/ Factory Air - Radiator Fluid Appearing on Passenger Floor Mat
Post by: C6ZZGT on June 14, 2017, 11:35:04 PM
Welcome to the site ! And yes if antifreeze then heater core or hoses,not a real hard job.
Title: Re: 1966 GT w/ Factory Air - Radiator Fluid Appearing on Passenger Floor Mat
Post by: jwc66k on June 15, 2017, 12:25:02 AM
Welcome to the forum.
Welcome to the site ! And yes if antifreeze then heater core or hoses,not a real hard job.
Don't take shortcuts. Cut the heater hose in the engine compartment at the water pump leaving about a foot long section, remove the heater hose at the intake manifold fitting and jumper it between the pump and manifold fitting (clamp required at the manifold). That way you can still drive the car. You would most likely have to cut the hoses anyway because you WILL have to remove the heater box under the dash to see what the problem really is. Get a set of new tower type hose clamp when you order a new hose (you will have to cut the new hose to two different lengths) and possibly a new heater core. Cores can be fixed, but that is usually much more than a new one. Have fun doing this.
Jim
Title: Re: 1966 GT w/ Factory Air - Radiator Fluid Appearing on Passenger Floor Mat
Post by: grimmnar on June 15, 2017, 08:53:41 AM
Thank you for the prompt replies and information, I appreciate it more than you know !

And yes, on the anti-freeze, it's green as can be :)  I've not used the AC yet, as the PO informed me that one of my many tasks would be to feed AC's condensation hose (for lack of a better term)  through the floor pan out it's exit hole prior to using the AC.  (i'll need to find that hole below, and was hoping there would be some sort of rubber seal to purchase to keep out the outside water and help hold the hose in place)