The block heater, on your 2001 Honda Civic, can be found on the front of the engine block. The engine block heater cord is mounted just below the front grill.
The block heater, on your 2001 C 15 Caterpillar diesel engine, can be removed by loosening the retaining nut. The block heater will easily come out. Reverse the process to install the new heater.
The heater blower in a 2001 Hyundai XG300 is located on the passenger side of the engine. The blower resistor will be located on the firewall.
The 2001 Hyundai Santa Fe does not have a factory block heater option. Beginning in 2009 there is a port to install a Hyundai manufactured block heater for cars built for sale in Canada. Pre-2009 requires a heater to go in a freeze-plug hole, so the cord is wherever the installer put it, usually behind grille.
There are some units that replace the oil dipstick There are some units that require removing a freeplug and replacing with blockheater
A block heater was not standard equipment on a 2001 Chrysler 300m.
The 2001 Hyundai Elantra's came with the 2.0L engine
The 2001 Hyundai Accent has an inline 4 engine.
The 2001 Hyundai Sonata has an inline 4 engine.
The 2001 Hyundai Elantra has an inline 4 engine.
If the engine is out it's easy. Unfortunately they put so many pieces below the block heater of that model it's almost impossible to change with engine in car.
You can flush the block thru the line to the heater core at the firewall. This will flush the heater core also.