Hi, been fiddling around all day with this heating issue, i've just about tried everything in the engine bay.
Heating is just not getting hot, I know its not the matrix blocked, I have just replaced the control valve,
There is a vacuum pipe that goes through the bulk head, right by the matrix pipes, Does anyone know where this goes to or is connected to??
I occasionally get some heating but it soon vanishes, Is this the fault or is there something else I should be giving more attention to??
I know its almost summer and won't be needing it, but want it working for next Winter