1HDT Cooling System help
Posted: Sun May 31, 2009 12:12 pm
Just after some advice regarding the cooling system on the 80 series 1hdt engine.
Had a leaking radiator the other day, so have replaced that.
New radiator seemed to have a slight leak initially, but that has now stopped.
What I can't figure out, is after having gone for a quick drive up a hill to test everything out, the lower coolant hose from the radiator is still cold, while the upper coolant hose is hot. The temp guage showed a normal temperature approx 1/3 - 1/2 way up the gauge. Also the heater is pumping warm air.
I'm wondering now whether I might have a faulty thermostat? Or maybe it simply takes a long time for the 1hdt engine to get hot enough for the thermostat to open?
Any suggestions much appreciated.
Had a leaking radiator the other day, so have replaced that.
New radiator seemed to have a slight leak initially, but that has now stopped.
What I can't figure out, is after having gone for a quick drive up a hill to test everything out, the lower coolant hose from the radiator is still cold, while the upper coolant hose is hot. The temp guage showed a normal temperature approx 1/3 - 1/2 way up the gauge. Also the heater is pumping warm air.
I'm wondering now whether I might have a faulty thermostat? Or maybe it simply takes a long time for the 1hdt engine to get hot enough for the thermostat to open?
Any suggestions much appreciated.