I wonder if anybody has any suggestions about this. My 2003 Terracan Diesel Auto has the automatic climate control fitted. I set the temp to 21C in either auto or manual mode and it warms up as it should. It then cuts the heat but continues to blow cool air. The problem is that it never turns the heat back on unless I keep increasing the temp all the way up to the max of 32C. I have checked this with a thermometer and the cut of temp is spot on.
Any help would be appreciated!

Hi I have a terracan that is doing exactly the same thing has it been cured on yours and if so what was the fault

Ian

Yes my 2003 Diesel T-can does this too. I was thinking that, as the temperature sensor is under that short slot on the left hand side just at the bottom of the windscreen (at least I think it is), maybe it gets too hot from being too exposed to such sun as we get in the same way that it gets hot inside a greenhouse. So I was going to experiment by sticking a piece of card to the glass so that the slot was in shadow but that was before my camshaft rotation sensor failed, followed by the heater matrix springing a leak so I guess it will have to wait until I get the rest of the car working properly.

I have tried blocking the sensor as well and as I get the problem when it is dark this points to a sensor fault. As always the dealer says the computer cannot find a fault, I wish we had mechanics who looked at the fault not the computer screen.

Hi folks, i too have the same problem with the heater going cold on my 2003 2.9 terracan crtd auto.
I was going to have it regassed as it is overdue but maybe not now having joined this forum.
Sorry i can't be of any help at present.
Ed.

There is a pipe behind the radio which can sometimes get kinked and this causes a problem like yours.