TADTS or is there something wrong. When the fans are on, hot air comes out of my vents with the temperature dialed all the way to cold.
Anyone have this with their one?
You shouldn't get hot air from the vents with the temperature control knob on cold. That being said, there always seems to be some warm air coming from the vents if you are not using the A/C and just have the temp. set to cold. You may have a stuck flap that is allowing the outside air to pass through the heater core instead of diverting it around as you mentioned. How hot is the air coming from your vents? Can you put a thermometer in the vent and get an actual reading?So from looking at the service manual, there isn't a heater per-se as the hot air comes from the radiator. There is a flap in the system which controls the mix of cold and hot air so it's possible that isn't not closed fully in the "cold" position.
Can anyone else confirm whether hot air should come from the vents when the temperature adjustment knob is in the fully cold position?
Thanks -I'll take a look at those flapper valves.
So would this also be related to my AC not blowing cold?
Sounds like I need a new heater box. Luckily I've a year left on the warranty.
Hmm, noticed on the way home from a track day on Thurs that I only had heat. Including when I turned the knob to cold, it blew heat. Not just slighter warmer than ambient air- like the heat was on. It certainly seemed different than the last 4 years I've had the car. I did a search, found this thread, and pulled the access panel, pulled the heater hose...
And it looks like the flapper is working. :shrug:
Any ideas why the flapper would appear to be working and it feels like it is blowing the heat the same as when the heat is set to high? It's always been maybe a touch warmer than the outside air but not too much different. Now just using the vent is like using the heater.
From what I was told from my dealer you pretty much have the worse case scenario. If i remember correctly it means that the heater box needs to be replaced because some gears either stripped or broke and the flapper inside of it is not working. He told me this when I brought mine in for the resistor repair. to replace the entire heater box the dealer quote me a few buncks under $2000.00-eek--eek--eek-
I really hope it is something else, but it doesn't sound like it. Keep us informed.