Rewiring Heater pump to NOT run all the time? Been Done?

[996scott]

I know almost nothing about electrical stuff but I would think that you could unplug the electrical connection from the circulating pump and then tap into the wiring that turns on the blower and connect that to the pump as well. That way when you turn on the heater the blower AND the pump will both turn on? Or am I way off base?

[Holdmybeer]

I would want them on 2 different switches.
Like Knox said, leave the fan switch on the dash but add a switch under the seat for just the pump. This way you have ambient air without the pump and heat with the pump.

However, make sure the pump coolant line are aux hose loops and not part of the main
trunk system. Otherwise, you are going to add restriction to the cooling loop by not spinning the heater pump and could overheat the engine.