Why am I not getting power to my ignition coil?

Locate the positive or power wire attached to the engine coil. Check for power using a test light. If this wire has no power, then your ignition coil is not receiving current. You should check the wiring from your ignition switch to the coil for breaks in the wire and repair them.

How do you test a Chevy ignition control module?

If your GM vehicle has a slow or hard start, the ignition control module should be tested with an electrical test light.

1. Open the hood of the GM vehicle. Locate the ignition module.
2. Connect the positive test light lead to the ignition module signal wire.
3. Ask a partner to crank the engine numerous times.

How do you test a Chevy ignition coil?

Place a lead from the ohmmeter on either side terminal and one in the center high tension terminal. Read the ohms off the meter. You are looking for 7500 to 10,500 ohms, and if the reading falls outside that range, it indicates a defective coil.

Does ignition coil have constant power?

Re: Coil has constant power Yes, the coil is always connected to the battery. It’s no more of a problem for the wires IN the coil than it is for the wire ON THE WAY to the coil, as long as there is no current flow.

How to determine if a 2000 Silverado has a bad ignition coil?

How to Determine if a 2000 Silverado Has a Bad Ignition Coil 1 Look over the clamps on the battery cables and make sure they are clean and tight around the terminals. 2 Disconnect the battery cables and connect a load tester to the battery. 3 Open the fuse box and inspect all of the fuses related to the ignition system.

How to test ignition coil pack ignition plug?

Do not use a regular spark plug instead of a spark tester to test for spark. Do not remove the spark plug wire from the spark plug or the ignition coil while the engine is cranking to test for spark. Start your diagnostic from TEST 1, do not skip around from test to test unless instructed to do so by the TEST you are currently on.

What happens if there is no spark in the ignition coil?

Hence, without this high voltage, there is no spark and, consequently, internal combustion cannot take place within the engine. Simply put, the bottom line is without spark the engine doesn’t run.

Can a bad cop coil cause a misfire?

So if your GM pick up or SUV or van is suffering a misfire condition due to a bad COP ignition coil, this is the article for you. Also, all tests are ON CAR tests and done without a scan tool. You can find a complete listing of GM vehicles that this info/tests apply to in the Applies To: box in the right column of this page.