Temperature have going up
Ok so first in the winter, wasn't getting much heat.
Now a.c. is not blowing as it should. When a.c. is
running it usually helps keep the gage stable at
2nd large line. Also hear a humming like sound
when car is on. When a.c. is off car will gradually
go up, however go up more when idle at a light or
long periods of time. Please help, thank u