1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

heat coming out from heater when off!!!

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Old Aug 27, 2003 | 11:56 PM
  #1  
rneoaz82's Avatar
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heat coming out from heater when off!!!

Ok guys i got me a 83 rx7. when on my way to school it lets out alot of hot heat from the vents on the bottom of the center console.. i need some help cause this bastard gets pretty hot and it sucks. can someone tell me how to stop this.. my heater is turned off and the temp is turned all the way to cold and stiff comes out no matter what..
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Old Aug 28, 2003 | 01:03 AM
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theres a cable that is hooked up to the temp control. the cable could have came loose on the other end while it was on hot.
the tubing that brings the hot or cold air to the vents is parted out into 3 or 4 sections. it might be loose in one of the links, allowing the air to leak though.
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Old Aug 28, 2003 | 06:17 AM
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MY SE does this, my GSL did it, and my 88. I wouldn't worry about it unless it just anoys you
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Old Aug 28, 2003 | 06:20 AM
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i need some help cause this bastard gets pretty hot and it sucks.
I wouldn't worry about it unless it just anoys you
Which it apparently does, because hes asking how to fix it, not why it does it...

~T.J.
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Old Aug 28, 2003 | 07:08 AM
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From: Lagrange, KY
My gsl does it.... only thing i do is set it to cold, and turn off the air, let the side vents draw the outside air in and hope its colder than inside my car. But if there is a way to fix this.... i want to know... it annoys me.
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Old Aug 28, 2003 | 10:41 AM
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Sounds like the cable that operates the hot water inlet valve to the heater core is either disconnected, or the valve is stuck open (which is not uncommon).
On a sort of related note, my Ford Fiesta has NO heater valve, the hot water flows through the heater core 100% of the time. What a stupid design.
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Old Aug 28, 2003 | 10:55 AM
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im gonna hope that its just that cable. yes i do want to fix it because it sucks to burn your leg everytime i drive..
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Old Aug 28, 2003 | 12:14 PM
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Put it on "defrost" and then your leg won't get hot.



...Just your face, lol.
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Old Aug 28, 2003 | 02:15 PM
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Originally posted by XLR8
MY SE does this, my GSL did it, and my 88. I wouldn't worry about it unless it just anoys you
Trying to be helpful way of saying I don't know how to help you
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Old Aug 28, 2003 | 07:28 PM
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From: Raleigh,MS
get a coupleing and bypass the heatercore in the summer
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Old Aug 29, 2003 | 02:23 AM
  #11  
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From: Bothell, WA
good idea except when your runnign really hot and need that heater core to prevent you from overheating.

Last edited by hornbm; Aug 29, 2003 at 02:26 AM.
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Old Aug 29, 2003 | 06:46 AM
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From: Orlando, Fl
Originally posted by Wankelguy
Sounds like the cable that operates the hot water inlet valve to the heater core is either disconnected, or the valve is stuck open (which is not uncommon).
On a sort of related note, my Ford Fiesta has NO heater valve, the hot water flows through the heater core 100% of the time. What a stupid design.
Heh, there is no water valve on FB's either. The cable operates a door that lets air pass over the heater core. Stupid, just like the Festiva LOL.
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Old Aug 29, 2003 | 12:10 PM
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Originally posted by Rx7carl
Heh, there is no water valve on FB's either. The cable operates a door that lets air pass over the heater core. Stupid, just like the Festiva LOL.
It's a FIESTA, dammit!

So the FBs don't have a hot water inlet valve? Sorry for the misinformation, all my experience with RX7s is with my '80.
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Old Aug 29, 2003 | 12:30 PM
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Fiesta/Festiva, whatever samee same.

Havent found one yet. The 80 has a valve? I didnt know that, good thing I didnt say 1st gen huh?
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Old Aug 29, 2003 | 12:47 PM
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From: PalmyraNY
If..and only if the hot water is getting to the heater core and thecontrol is not stopping the water flow you have to stop it from happening to control the heat. The easy way to do that is to install a MINI BALL VALVE. you can then control water flow to heater core. Some of the old hot roders use mini wood clamps and pinch the hose. Small pair of vise grips also willwork as a test to see if you like the results. Culprit is flowing hot water. "Graingers" has the ball valves and nipples you will need for permanent installation...
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Old Aug 29, 2003 | 01:55 PM
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Originally posted by Rx7carl
Fiesta/Festiva, whatever samee same.

Havent found one yet. The 80 has a valve? I didnt know that, good thing I didnt say 1st gen huh?
Ha Ha, you dodged a bullet there, didn't you?
Go buy a lottery ticket.

Fiesta: Made in Germany for the US market, or Spain for the Euro models. Only sold in the US '78-'80.

Festiva: Made in Korea.

My Fiesta.


Festiva.
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Old Aug 29, 2003 | 03:55 PM
  #17  
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From: Orlando, Fl
Hah, I sure did! I think I will play lotto today!

Fiesta

Festiva

Sorry to have insulted your car like that.
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