Volvo Repair: 1986 Volvo 240 DL, volvo 240 dl, volvo 240

Question
How do I know if I need to replace my ignition coil and if I do how do I do it?

Answer
you would need to check for constant power supply at one terminal and an oscillating power at the other when cranking the car over if they are both there and there is no spark from coil wire when holding it near a ground source it is bad.it just unbolt the 10mm bolt on the bracket and slide the coil out.