Hayes Repair Manual, $20 tops.
heater coil is good conductor of electricity
The heater coil is located behind the dash board. You will have to remove the dashboard to get at the heater coil
Clarification of terminology- Heater core not heater coil. And Yes there is a very good chance that it may be leaking.
The heater coil and a heater core is the same thing. Hot water circulates from the engine and through the heater core then back to engine generating heat for your heater system.
Go to NAPA and buy a repair manual for your specific car.
the coil is behind the motor
Usually misfires can be attributed to a bad plug, wire or coil.
This is a job that needs supervision so as to not mess something up and costing a bunch to repair. Get a manual form the parts store or AUTOBOOKSONLINE.COM
The heater resistor coil is located on the blower motor on the 2006 T300 Kenworth.