How do you test ignition coil rail?
Turn on your ohmmeter and set it to the 20,000 ohms range. Touch the ohmmeter leads to the connectors in the first spark plug boot. Your meter should read from 6,000 to 30,000 ohms. Repeat this on each spark plug boots.
How can I test if my ignition coil still works?
Testing such units involves using a few electrical tools to gauge if the part still works, since most modules and coils are sealed with no serviceable parts. Disconnect the spark plug cap from the spark plug. Carefully remove the plug wire to the ignition coil from its hooks that keep it in place on the engine.
What kind of spark tester is used for ignition coils?
An ignition spark tester like OEM 25069 takes the place of a spark plug – is grounded to the engine and can easily show you whether a particular wire or coil is providing spark.
Is there a way to test an ignition module?
Short answer is no, other than to pull the plug, open the electrode gap a little, earth the plug out to the cylinder and give it a few pulls while watching for spark. I strongly suggest that you also disconnect the kill wire while doing this as this can stop spark if there is a wire or switch fault.
How do you reattach a spark plug to an ignition coil?
Attach the spark plug back to the spark plug wire. Now, carefully reattach the spark plug to its wire. You should be left with a spark plug that’s connected to the distributor but not seated in its “hole.” Handle the spark plug with insulated pliers to avoid the possibility of electric shock.
Do you need a spark plug tester to test ignition coil?
Using a spark plug tester also means you won’t expose your combustion chamber to debris. Remove the spark plug using a spark plug socket. Once you’ve removed the spark plug wire, remove the spark plug itself. This is easiest with a specialized socket wrench called a spark plug socket.
How to test primary resistance of ignition coil?
To test the primary resistance on the coil, grab a multimeter and attach the positive probe to the positive terminal on the coil. Then, attach the negative probe to the negative terminal. Set the multimeter to 200 ohms in the resistance category and take the reading. Typically, the primary resistance should be somewhere between 0.4-2 ohms.
When do you Know Your ignition coil is working?
If your ignition coil is working properly, when your friend cranks the engine, you should see a bright blue spark jump across the spark plug gap. This spark will be clearly visible in the daylight. If you don’t see a blue spark, your ignition coil is probably malfunctioning and needs replacement. Orange sparks are a bad sign.
Attach the spark plug back to the spark plug wire. Now, carefully reattach the spark plug to its wire. You should be left with a spark plug that’s connected to the distributor but not seated in its “hole.” Handle the spark plug with insulated pliers to avoid the possibility of electric shock.