I have read recent posts on the removal of the heater hose valve and I have a couple of follow up questions.

1. What purpose does the coolant circuit from the radiator to the switch valve serve. In other words, why was it set up like that originally and will the heater perform any differantly than it does now.

2. What can I use to plug the hole in the radiator after removing that hose? Could I screw a brass plug right into the radiator itself or do you guys leave a little hose there and then plug that with something?

3. Can anyone post a photo of how they tapped into the water pump. This would be a return line from the heater core right. Will the pump suck the fluid from the heater core when set up this way?

 

You can remove the switch, but not the hoses--leave them where they are. Keep in mind that without the switch the heater core will be hot all the time and can cause your feet to get a little warm in the summer and the AC to not work quite as well. The only suction on the pump is on the lower radiator hose. Why do you want to remove the radiator to switch valve hose? The coolant flow from a pressure source to the heater core and then to the switch and out to the radiator(it sounds as though yours works this way).

 

not the best pic, but you can see the barb fitting going into the top of the water pump. You can remove every hose that has to do with the heater control valve, i did, now all i have is a hose going from the intake to the firewall (heater core) and from the firewall to the water pump, and thats it. You can buy plugs for the radiator and just clamp them on.

 

That's what mine looks like.

 

Thanks Guys. I think I'll just re-route the hoses and keep the switch valve. I plan to maintain the air conditioning and I don't want to make it less effective.