Because the car needs all the power it can get to start so you heater and maybe radio cut out for a few seconds.
it needs a new blower motor resistor ....
No. Most car heaters function by circulating anti-freeze through a device called a heater coil which underneath the dashboard of the car. The battery will start the car's heater fan, but the fan will simply blow ambient temperature air, rather than heated air.
yes it will start but you dont want to start it.
It will not start ???????
It usually shouldn't, but if it does, it should only stay like that for a few moments.
there seems to be a short in the electrical system, i would start by checking the heater switch,
check your thermostat or your heater core may be getting ready to go out
Your car could be low on antifreeze or your heater core could be clogged. With my car, it was Heater matrix clogged with radiator sealant. The workshop cleaned it and it's start working fine!
Perhaps it needed to cool down.
you first have to have a block heater (frost plug heater) instaled on your car... they dont come that way from the factory
Need make, model and year of car.
Sounds to me like the heater core is leaking coolant.