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Leaking coolant at the heater  Rate Topic 
 Posted: 07-12-2008 07:35 pm
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1st Post

Joined: 04-01-2008
Location: Carpinteria, California USA
Posts: 3
I had the smell of coolant inside the car and investigated to find the drivers side floor pan with coolant pooling.  I found the leak at the heating coil (not sure if that is the name)- It doesn't look like an easy repair to pull out- any ideas or tips would be great.



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 Posted: 07-12-2008 08:57 pm
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2nd Post
John Finch

Joined: 08-01-2005
Location: Minneapolis MN
Posts: 122
On the engine side of the fire wall, remove the two heater hoses from the heater core barbs and splice them together. You can find a metal hose barb splice at a hardware or home depot type store. Not certain of the hose id. You might also consider new hose clamps. This will completely bypass the heater core without issue until you decide if you actually want to remove and repair the heater core.

Good luck John

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 Posted: 07-12-2008 09:45 pm
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Joined: 02-21-2008
Location: Tempe, Arizona USA
Posts: 48
Take a look at this article: http://www.theymightberacing.com/Projects/FrameOff/JH74G/HeaterAssemblyRestoration.aspx

And, There's a fair bit of spelunking necessary to get the unit out. You'll have to remove the section of the console where the stereo resides, as well as the plate behind it. Plan on spending a few hours getting it out.

There's a bit o a flaw in the overall design of the heater box assembly. The heater core inside the box is stabilized inside the unit with a couple pieces of large cell styrofoam. Over time the foam breaks down or gets crushed which allows the core to move around inside the unit. Yours has probably been bouncing around in there a while.


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