Why does my car heater not warm up?
A cold engine is inefficient, so it is fitted with a thermostat to get it to warm up quickly. When cold, the flow of coolant is restricted so it only flows around the engine, and won’t enter the radiator.
What to do if your car fan won’t turn on?
Turn on the ignition and switch on the fan. Disconnect the motor feed wires (here a multi-connector plug) and probe the terminals . If the lamp lights, current is present and the motor is probably faulty. If the lamp doesn’t light, test the switch. Check for current at the fusebox.
What to do if your car heater fails to light?
Attach one side of the tester to the motor earth wire and probe each of the feed terminals in turn. If the tester lights on all the terminals, the motor is sound. But if the tester fails to light the motor has blown and will need replacing.
How can I more quickly warm up the interior of my car during winter?
Don’t turn on the air conditioning, but do turn on lights and (electric) rear defogger if available. Don’t run the heater fan, and set the temperature control to cold (you want to close off coolant flow through the heater core). Now, move off as soon as the oil pressure is normal (warning light out or gauge in range).
What happens when a car fan is not working?
That means a trickle out of your vents instead of the rush you asked for. When it does happen, you’re left with a miserably underpowered heat or AC system. It will still work with no fan, and you’ll usually still be able to control the temperature of the air that is blowing or trickling, out.
Why is my heat not working in my car?
One of the most common problems with an automotive climate control system is a lack of blower pressure or no blower at all. That means a trickle out of your vents instead of the rush you asked for. When it does happen, you’re left with a miserably underpowered heat or AC system.
Why does my Dodge Caravan have no heat?
My problem is on a 1996 Dodge Caravan 3.3 liter. It has A/C but is a short body and has no rear heat or A/C. The trouble relates to the blower motor and its activation. My blower motor does come on. The Haynes manual says the blower is activated by a relay. I need to find the location of this front blower relay and the fuse that powers it.
Can a climate control system work with no fan?
It will still work with no fan, and you’ll usually still be able to control the temperature of the air that is blowing or trickling, out. But a climate control system with no fan to push the air around is anything but controlled.