What are these 2 hoses for ?

[mav1178]

Originally Posted by dssence

Hope is like you say.. that's closed when you do not require it. It's useless to cover these hoses with aluminium tape ?

Useless, since the heater hose is in the engine bay and before the firewall.

[ame="http://en.wikipedia.org/wiki/Heater_core"]Heater core - Wikipedia, the free encyclopedia[/ame]

Once the engine has warmed up, the coolant is kept at a more or less constant temperature by the thermostat. The temperature of the air entering the vehicle's interior can be controlled by using a valve limiting the amount of coolant that goes through the heater core. Another method is blocking off the heater core with a door, directing part (or all) of the incoming air around the heater core completely, so it does not get heated. Some cars use a combination of these systems.

Simpler systems allow the driver to control the valve or door directly (usually by means of a rotary knob, or a lever). More complicated systems use electronics to control the valve or doors.

Cars with dual climate function (allowing driver and passenger to each set a different temperature) may use a heater core split in two, where different amounts of coolant flow through the heater core on either side to obtain the desired heating.

-alex

[dssence]

Originally Posted by mav1178

Useless, since the heater hose is in the engine bay and before the firewall.

Heater core - Wikipedia, the free encyclopedia



-alex

Great, thanks alex. So I shouldn't worry in our FRS there's a valve opening and closing. It's just hot cause it's the hose entrance and fluid is circulating.
Being so hot at touch means at that point of the entrance it's being blocked?
By the way do you have the service manual pdf handy ? cause the one I got doesn't have index. I think I got it from the sticky, is there just one ? it's got aboout 4000 pages

[Tromatic]

Just tear all the plumbing out right now. You'll start asking about that eventually.

[mav1178]

Originally Posted by dssence

Great, thanks alex. So I shouldn't worry in our FRS there's a valve opening and closing. It's just hot cause it's the hose entrance and fluid is circulating.
Being so hot at touch means at that point of the entrance it's being blocked?
By the way do you have the service manual pdf handy ? cause the one I got doesn't have index. I think I got it from the sticky, is there just one ? it's got aboout 4000 pages

I don't have the sections of the manual you want, I only have what everyone else.

As for your questions on the hose, all I can say is "don't worry about it". The hose is the same temperature as the rest of the coolant hoses (try touching the large upper radiator hose, same temp!).

If you feel the temps in the car are excessive even when you have the AC off and temperature dial set to cold, you should have the dealer inspect the car. It may very well be a case of a malfunctioning sensor or a bad valve that is allowing the heater core to heat up.

-alex

[captain_beebus]

I don't think I understand this thread really.... Why are you messing with all this stuff??

[Carlitoz3]

Originally Posted by captain_beebus

I don't think I understand this thread really.... Why are you messing with all this stuff??

#BecauseHeaterCore

[stugray]

Originally Posted by captain_beebus

I don't think I understand this thread really.... Why are you messing with all this stuff??

Because these cars have a "problem".

If you are driving around on a nice 70 deg F day and you turn your HVAC system to "Cold" and AC Off, the vents still blow ~85 deg F air out of the vents....

[captain_beebus]

Originally Posted by Carlitoz3

#BecauseHeaterCore

Makes sense now.

[captain_beebus]

Originally Posted by stugray

Because these cars have a "problem".

If you are driving around on a nice 70 deg F day and you turn your HVAC system to "Cold" and AC Off, the vents still blow ~85 deg F air out of the vents....

hmm... opening the windows sounds like a good alternative to me instead of going through all this crap...

[Braces]

@dssence .... I commend your efforts in solving your dilemma. I fully expect to see pics of you re-arranging all of your heater core pipes in order to get the outside cold air. Afterwards .... when it gets cold in Argentina (if it ever does) ... will we see a new thread from you concerned about the lack of hot air coming through the vent.

[Tromatic]

OP could start a new fashion trend in the mod world by putting all that plumbing outside the car. Lots of pop-rivets and a big-ass wing as well. ETA: I have found my solution works well. When it's hot out, and the HVAC system seems to be blowing warmer than ambient air I turn on the AC.

[jonbonazza]

OT: Am I the only one who read the title as "What are these 2 hoes for?"

I can't be the only one... right?

[Dave-ROR]

If you never use the heater you could just loop the hose instead. Cap off the heater core when you do so (or remove it assuming it doesn't hold other components, which it probably has other components mounted to it.. so.. yeah).

Argentina isn't even hot (at least Buenos Aires) so I'm not even sure what your goal is? Florida is hotter and the AC works just fine. :shrug:

[SloS14]

You know you *could* just press the recirculate button.