Can you tell me how to test a pickup coil (on a GM)?

Answer by  happytimes63 (865)

The way I test a coil, is to remove the wire leading to the distributer, and place a long screwdriver into the hole. Next place the screwdriver close to another metal part, turn engine over and look for spark. Note, if the coil has oil leaking from it, replace it.

Answer by  McCheese (1248)

The pickup coil will not work if the green transmitter wire is loose or not connected. When the coil isn't working, this is usually the problem.

Answer by  TravisUSMC (979)

A simple test light will do the trick. Ground one end of the test light on an unpainted part of the frame or engine. Remove the plug that goes to the distributor. Have the ignition key turned on but dont let anyone crank the motor over. Now place the test light in the coil, if it lights the coil's good.

Answer by  MechMan3 (885)

The GM pickup coil works of the distributor shaft, using a magnet. You can hook a multi meter to the pins and pass a screwdriver in front of the pickup. I would guess your ignition module is junk. Have it tested at any reputable auto parts store.