TheRealPapaK
Active member
Hello everyone,
My GMC 4500 cutaway has a factory installed hydronic heater to heat the coolant for a heat exchanger and to help warm up the engine faster etc. I can't seem to find any information online for how it works. Is it just thermostat regulated? It is installed by the drivers side frame rail. I am wondering if I can high jack it and have some manual control over it.
Thanks!
My GMC 4500 cutaway has a factory installed hydronic heater to heat the coolant for a heat exchanger and to help warm up the engine faster etc. I can't seem to find any information online for how it works. Is it just thermostat regulated? It is installed by the drivers side frame rail. I am wondering if I can high jack it and have some manual control over it.
Thanks!