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Topic Review (Newest First)
07-20-2013 08:22 PM
Wesboy The heater inlet/outlet hoses are different sizes - 5/8" and 11/16" on my '97.
I purchased a short length of each size hose and joined them with a brass adapter (red arrow).
Bypass hose is routed around the air intake tube (to avoid kinks) and reconnects below (yellow arrow).
Note - original heater hoses are still in this pic, just not connected.
Ran like this for 6 months till I replaced the heater core.
Attachment 275319

Alternatively, you could disconnect the stock heater hoses at the firewall and join them with an adapter - I was having difficulty disconnecting the hoses at the firewall, so made up this bypass..
07-20-2013 07:11 PM
PitViper Wow that was quick. Thanks for the replies. Now isnt the heater coil located inside the dash? Can bypassing the heater coil be a temporary solution. I live in socal and its been in the triple digits for the last 2 months. The idea of fixing the heater just seems like a waste of time right now. LOL.
07-20-2013 06:55 PM
Dragolic I believe that is the drain from the heater coil box.


You have a leaking heater coil. Relatively easy fix. You can verify this by bypassing the heater coil and checking for any loss. Unless you live in Alaska right now.
07-20-2013 06:54 PM
Hardermods ^^ Agreed

That is the drain for the Hvac box, if you are getting a leak there and smelling coolant through your vents I would bet on your heater core leaking!
07-20-2013 06:53 PM
Neil F. That's the HVAC box drain. If you have coolant comming out there, your heater core is leaking
07-20-2013 06:45 PM
PitViper
What is this leaking coolant???

I have a major coolant leak. The reservoir goes completely dry in about a months time without topping off. Its been like this for a long time. This is the only place where the coolant is leaking from. (But i also get coolant vapor blowing in from the vents.)

Cant seem to figure out what this is. If anything is supposed to have something attached to it and if it does were the other end attaches to. Its that short black pipe sticking out of the wall. Between the battery and the ac condenser.

Any ideas??

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