Coil test, ignition test

[theprofessordan]

Any clue on how to test a coil? How about the ignition system from the switch.

97 Volvo 5.7GL (chevy 350). Looking to test the ignition system, coil and ignition control module. Coil is normal 12V with + and - terminal contacts.

Dan

 

[wire2]

Re: Coil test, ignition test

Remove the HV lead from the distributer, have the end ?" from ground.
With the key "on" there should be +12v on the coil + terminal.

Remove wire from - coil lead to distributor.
Take a jumper wire clipped to engine ground, and momentarily touch the other end to the - coil post. When you remove it, there should be a spark from the HV wire.

That will test the coil, but not the module in the distributor

 

[Don S]

Re: Coil test, ignition test

What exactly is your problem? No spark?
Do you have the full model number of your engine? Need to know the letters folloing the 5.7GL.