Hi all,
I have a new problem which I hope will be easy to diagnose:
I’ve recently noticed the heating in the car has been inconsistent. It blows fine but the air is sometimes air temp (it’s winter) and sometimes heated.
I had a long drive yesterday (600km) and the air temp was below 10C all the way so I had a good chance to observe it.
What I discovered is that the air was blowing at outside air temperature UNLESS I was driving up a steep enough hill.
That is, heating was running fine uphill only.
I’ve tried a few tests with cold air (A/C) but not recently. It also seemed inconsistent.
Is there a switch or servo somewhere which would explain this problem? Which parts would I need to solve it please?
Many thanks, Gus