Originally Posted by houndawgbp

I'm an idiot. I never thought thermostat lol my accord and my truck did the same thing. Thank you!

Originally Posted by halac

On my 2000 GS300 (dual control) I can't get any heat coming out. The blower works and all the functions seem to work, but all I get is cold air. The AC works fine.

I've disabled the battery and reconnected to cycle the control system, but help.
I do feel the hoses coming into the firewall from the engine compartment and both are hot.
I ran the temp control check by holding the auto and temp buttons. Get 24, 31, 41.

Need Help. What can a novice with limited tech skills do? Would this be a servo? Is there one servo that opens the temp Mix for both sides and if so, where is it?

Shop claims they need to pull dash out at super expensive rate. I read that flushing might solve problem - can I do this by sticking a garden hose into the firewall inlet to the heater to see if there is anything clogged?

Can someone give me some steps to take that I can try out. I'm new to the forum. Thanks all in advance.