 Cabin heat coming in even with console handle down, Checked the heat valves |
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| oakdalecurtis |
 Mar 29 2017, 04:53 PM
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#1
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Oakdalecurtis  Group: Members Posts: 1,377 Joined: 5-June 15 From: Oakdale, Ca Member No.: 18,802 Region Association: Central California 
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I kept feeling a small amount of heat coming in on my feet even with the heat control down. I checked the cables and the heater valves underneath the car, it felt like they were closing when I manipulated them. I finally pulled the valves out, and one of them had a nut stuck in the valve gap so it wouldn't close all the way. No idea how the nut could have gotten there, but it's nice to drive now without the heater leaking into the cabin! Btw, I had no use for the disconnected CAT and EGR lights on the dash, so I black plugged one light and connected the other to the cabin heat switch. Now when I pull the console lever to get heat, a red light goes on in the dash to remind me that heat is on.
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| r_towle |
Mar 30 2017, 08:51 AM
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#2
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Custom Member Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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There is a rubber seal in the flapper box, on the round flapper, that degrades over 40 years and allows leaks to happen. If it's still hot, change the mixture to include fresh air
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| barefoot |
Mar 31 2017, 08:43 AM
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#3
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Senior Member Group: Members Posts: 1,415 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States
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QUOTE(r_towle @ Mar 30 2017, 10:51 AM)  There is a rubber seal in the flapper box, on the round flapper, that degrades over 40 years and allows leaks to happen. If it's still hot, change the mixture to include fresh air Huh??? how do you do that? the flapper is either closed to the cabin or the atmosphere discharge or somewhere in between. I expect you can get in there and use some hi temp RTV to re-nue the flapper seal. |
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Posts in this topic
oakdalecurtis Cabin heat coming in even with console handle down Mar 29 2017, 04:53 PM
mgphoto Photo??? Mar 29 2017, 05:39 PM oakdalecurtis Off, then On pic:
Mar 29 2017, 10:18 PM rhodyguy The heated air and cooler outside air can be mixed... Mar 31 2017, 08:52 AM Dave_Darling I remember that the flap inside the flapper valve ... Mar 31 2017, 04:46 PM
mepstein
I remember that the flap inside the flapper valve... Apr 1 2017, 07:01 AM Perry Kiehl I had a car in that had the same problem. It was ... Apr 1 2017, 06:42 AM r_towle I removed the flexible hoses in the summer....that... Apr 1 2017, 08:50 AM |
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