105
« on: 23 July 2013, 16:42:20 »
I am trying to diagnose whether my thermostat is working Starting from cold The 2 small rubber pipes on drivers side of engine bay going through a pump? get hot very quickly , heater off, whilst the top hose to rad is cold.After a short time heat does appear at the top hose but the temperature gauge is still not moving. keep running and the gauge begins to register and on normal driving settles at 85-90.but can take quite a while to get to this temp. Why are the 2 small rubber hoses getting hot first do they go to the heater? why would they get hot with heater off does that pump? run all the time.I hope this makes sense I dont want to replace the thermostat if it OK.