Heat from the firewall entering cabin
09-06-04, 09:25 PM
#36
Lexus Test Driver
I have the same problem in my GS. Seems like a lot of hot air coming from right below the steering. Passengers also mentioned that they feel warm air around the glove box area.
I guess this is good for the winter
I guess this is good for the winter
It seems like the Sc430's have the same sort of problem, If anyone finds a solution here u might wanna pass it over to them or vice versa
09-06-04, 10:23 PM
#38
Pole Position
What VSsc400 said.
Put on the AC.
Put on the AC.
09-07-04, 04:48 PM
#40
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yeah this sucks as i thought was the only one that had the issue. I think putting extra heat sheild material might be the only way to fix this. Kinda sucks but hey. Looks like design flaw. There weren't many with these cars so i gueSS it's better then a crappy Tranny
07-03-06, 06:17 PM
#41
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Originally Posted by O. L. T.
See that metal rod under it? It connects to the unit and moves via the hydraulic action inside the cylinder. Simply remove the arm from the dome and manually move the latch on the bottom of the heater control valve. Turn your heat on in your car and if you do not feel heat after doing this, you are set and ready! Give it a few minutes to cool down since there is still heat in the core, letting the car sit a while is a good idea too just to be sure.
is the metal rod the arm?
07-03-06, 07:14 PM
#42
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I too have this same problem. It is not powered by the fan but from the air outside (air vents). Passing through the heater core heating the air and into the car. I feel it as I drive with the a/c off, but at a full stop its gone. I figure that the vent isn't shut all the way and could be the cause. I'll have to try that manual close and arm removal to verify. Thanks OLT, you always seem to provide very promising ideas, if not, solutions. 
07-04-06, 07:08 AM
#43
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Originally Posted by VSsc400
unfortunatelly this seems to happen to all cars.
the cats being right underneath your feet don't help much either.
but this is normal. nothing you can do but to turn the A/C on.
the cats being right underneath your feet don't help much either.
but this is normal. nothing you can do but to turn the A/C on.
07-04-06, 02:01 PM
#45
Pole Position
adhesive backed reflective foil on the firewall behind the engine, exhaust wrap w/ high temp silicone paint between cats, heat sheild matting around the main cat, and heat/sound barrier around the whole tunnel.
the heat shield around the transmission tunnel helped the most, its a lot quieter inside the cabin also.
the heat shield around the transmission tunnel helped the most, its a lot quieter inside the cabin also.