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Fuse, switch, speed resistor or motor.
A block heater for that vehicle would be an option. If it came equipped with a block heater the cord would be found close to the battery.
It can do far worse, such as destroy your engine block. I wouldn't worry about your heater core, I would worry about your Engine.
First check the coolant level, a coolant leak would cause a heater to stop working- assuming you mean the blower is blowing but it isn't hot. A stuck thermostat will also cause you problems with your heat.
Most likely it would be a blown fuse in the fuse block.
Hose going from engine to heater core may have burst. Check all your coolant hoses for leaks.
A block heater is a device one would use to heat the engine of a car in extremely cold weather. The block heater can be mains generated or will run on the fuel source of your vehicle.
it is a heater. heat. it blows heat. warm air
form_title=Repair Block Heater form_header=The block heater is an important part of any car engine. Keeping it running is important in cold months. When did you notice that the block heater stopped working?=_ Does the cabin heater still work?= () Yes () No Would you prefer a new or used part?= () Yes () No
The port for the block heater is a small hole approx. the size of a quarter located on the windshield side of the motor, closer to the driver side of the car. It is just below the head (top part of motor) in the cylinder block. Make sure the hole is clean of dirt and debris by blowing it out, then simply push the heater element in until it clicks, that's it! ...well then you should plug the cord in... but that's it I swear!
check for coolant in system...radiator..next check for heater core leaking and verify if your thermostat is working(if it opens when engine is warmed up...hope this helps you..L
The fan motor has a short...change it.