My 2003 Tahoe rear heater is only blowing cold air. My front heat works great.. I have checked the fuses and they apear fine. can anyont tell my what else I might check. It seams it is just not getting warm water back there but I cant find a gate valve anywhere.
Thanks in advance.
Mike

 

Welcome to the Tahoe forum. Try doing a search for "rear heater" in this forum. There's been at least one thread that discusses a possible solution for this.