No Heat...what to do?

popsstyle

New Member
Jul 30, 2007
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new york
Air is coming out but it does not get warm anymore. I hear water behind the dash does that have anything to do with it? Any help will be appreciated as it is getting cold and i need to get this fixed. Thank you
 

p5150

ASE and FAA A&P Certified
Mar 31, 2005
1,176
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Central Idaho
try moving the valve on the firewall manually. You may also have a malfunctioning vsv or broken vacuum line
 

Dunckel

Active Member
Jan 16, 2007
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Spokane, WA
Popsstyle; Do you have any leaks that you can see? Try this, and report back. --->http://i80.photobucket.com/albums/j187/isnms/Supra/bypass_heater_vsv.jpg We'll go from there.
Do a search on vsv, no heat. This has been covered a few times and you will probably come across some useful information.
m1supra said:
you might want to check the heater core and see if its leaking or even getting warm
You will know if the core is leaking because your passenger side floorboard will be saturated with coolant. You can visually inspect it if you want to take the 6-8 hours to get to it. Let's check the easy stuff first.

Balong; Check your coolant level.
 

SupraMario

I think it was the google
Mar 30, 2005
3,467
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The Farm
popsstyle said:
Air is coming out but it does not get warm anymore. I hear water behind the dash does that have anything to do with it? Any help will be appreciated as it is getting cold and i need to get this fixed. Thank you

You either have air in your system, burp the system.
check and see if your thurmostat is bad
make sure your water pump is good and not half assing it, you can do this by opening the radiator cap it water is flowing its good, if its stagnat then time for a new water pump.

easy stuff first.
 

popsstyle

New Member
Jul 30, 2007
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new york
thanks for the replies i havent had the time yet to check it out but one thing i did was pour some coolant into it because the light to the left that looks like a dome comes on and stays on even after i added the coolant. im not sure as to why it doesnt go away. I noticed the heat comes on sometimes and then it would get cool and then sometimes it would get really warm again.
 

7msupradude

Please wash your car!
Jan 31, 2007
24
0
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Utah
Check your vaccum lines, especially the one to your blow off/bypass valve. Mine was blowing cold and I thought it was the heater core, but turns out it was the vaccum line to the bpv, which was not sealing (cheap silicone kit). Put the right one back on, and instant hot air.