Heater Hoses?????
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Laughing Gas
Joined: Aug 2004
Posts: 1,138
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From: Yuba City, Ca
here's the pic.
sorry it took so long to get the poicture. digital camera was messed up. thats what i get for buying a dang $300 camera. anyways the single line out of the firewall is what i'm talking about.
Drive It Like You Stole It!!!
Drive It Like You Stole It!!!
Elder User
Joined: Jan 2004
Posts: 767
Likes: 1
From: Franklin, GA
The little one down at the bottom of the firewall, below and just to the right of the blower motor? That would be the condensation/water drain out of the bottom of the heater box under the dash. If water from the cowl somehow gets into the heater box, or the humidity is high enough for condensation to form inside the heater box, that little hose lets the water drip out of the heater box outside the truck instead of in your passenger side floor.
Elder User
Joined: Jan 2004
Posts: 767
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From: Franklin, GA
Just thought of this. If you ever get water in the floor, before you go snatching the heater core out, check that drain tube out for mold, mildew and debris clogging it up. Poke a stick or wire in there and watch your self if you are under the truck if it is clogged up and you break the dam! You wouldn't believe how much water that heater box can hold.
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Laughing Gas
Joined: Aug 2004
Posts: 1,138
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From: Yuba City, Ca
ok so it's a drain tube. at least i know that know. i thought that it was cut because i saw it was an angle end(slant cut). thanks for the help hdgapeach, rlangs58, 19gator55, & 73 custom. hdgapeach thanks for answering everything in such depth. it's greatly appriciated.
Drive It Like You Stole It!!!
Drive It Like You Stole It!!!
Junior User
Joined: Sep 2004
Posts: 59
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From: Seattle WA
More Heater Hose/Core Questions!
Seems like now that it's getting cold, everyone online's doing their heating systems! I'm midway through my own heater core swap, (already read all the tech articles & postings) and I've got one real easy question I was hoping someone would help me out with:
I've got a '77 F250, and when I bought it, the heater hoses were chopped off at the firewall. I'm putting in a new heater core, and I don't know which of the 2 core sides/connections (on the engine side of the firewall) is for the bypass hose and which is for the heater/inlet hose.
I've got a Haynes manual, and it's about the most useless thing I've ever used! It doesn't show which hose goes where. It doesn't even cover the heater core swap as it relates to AC-equipped trucks, stating "..The following procedure is intended for vehicles without air conditioning. The addition of air conditioning complicates the procedure to the point where it is beyond the scope of the home mechanic..". I guess I probably shouldn't have even had the nerve to buy their lame manual, huh? What was I thinking?...
Anyway, if someone could enlighten me here, I'd be very happy, and a whole lot warmer. Thanks!.. Cameron
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I've got a '77 F250, and when I bought it, the heater hoses were chopped off at the firewall. I'm putting in a new heater core, and I don't know which of the 2 core sides/connections (on the engine side of the firewall) is for the bypass hose and which is for the heater/inlet hose.
I've got a Haynes manual, and it's about the most useless thing I've ever used! It doesn't show which hose goes where. It doesn't even cover the heater core swap as it relates to AC-equipped trucks, stating "..The following procedure is intended for vehicles without air conditioning. The addition of air conditioning complicates the procedure to the point where it is beyond the scope of the home mechanic..". I guess I probably shouldn't have even had the nerve to buy their lame manual, huh? What was I thinking?...
Anyway, if someone could enlighten me here, I'd be very happy, and a whole lot warmer. Thanks!.. Cameron
<!-- / message -->
Elder User
Joined: Jan 2004
Posts: 767
Likes: 1
From: Franklin, GA
My F150 has the heater core nipple closest to the passenger side fender connected directly to the nipple on the water pump. The other heater core nipple connects to the nipple just below and left of the thermostat housing and has the vacuum control valve installed closer to the heater core end.
Haynes is peculiar about some things. I don't know why they can't just tell you the freon has to be reclaimed from the system and not vented to the environment. I would think that would be enough to release them from liability of depleting the ozone.
Haynes is peculiar about some things. I don't know why they can't just tell you the freon has to be reclaimed from the system and not vented to the environment. I would think that would be enough to release them from liability of depleting the ozone.
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