is this your first car?
I will presume the fan is running at full speed and heat max is set and the that you tried recirc lever. fresh air is less heat...
Cab heat bad. right?
only when moving, what?
Ill guess that no heat sitting idle for 30mins. TIME MATTER.
as does time of day and if first start of day and if the ambient temperature (out door temp counts, and guess what no country or stated told so i cant look it up, me fail)
first off,
the modern engine can take a huge long time, to heat up dead cold and not driven , that is why the op guide tells you,
start car ,wait 45 seconds and drive off slowly,
the warms the engine fastest , saving 90%of all engine wear.
this is proven fact by Germany long ago and now with SAE.org.
hard fact.
now if you know the car warmed faster before.
then this is possible 2 ways.
1: bad thermostat. (slow)
2: or the engine is running so bad, that the heat to the water jackets are weak.
the cab heat will be the same as the engine water coolant
if the engine is cold, so will you be. hard fact.
there are no electric air heaters here...
here is a frozen air page.
http://www.fixkick.com/Cooling-engine/Frigid-motor-cab.html2 tests.
1: does the engine hit 180F or more and hold?
2; does it do that , at the same speed, as when new?
if not we trouble shoot that first. (fan works, and blows)
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