Does Your Honda Have Trouble Starting When the Engine is Hot? That just confirms that the spark plug fires in open air. If the reading is within the range indicated as acceptable in your manual, your primary winding is ok and you can go on to the secondary winding test. Circuit Descriptions Of The C-O-P Ignition Coil Connector All of the circuits can be tested without having to unplug the Coil-On-Plug ignition coil. However, because the power pack has varying voltage levels, a peak voltage adapter will also have to be hooked up to the multimeter. By testing your disconnected ignition coil first, using a multimeter, you'll be using data and numbers to determine the health of the coil rather than relying on your eyeballs. Some testers are out of favor with resistance testing because of inconclusive results. Fortunately, there’s a fairly easy test that you can perform to make sure that the coil pack is working properly. Testing an ignition coil on most cars is pretty easy. This can save you a lot of money over just replacing the whole set at one time. While ignition coils are generally very sturdy and reliable, over time, due to heat, vibrations, and faulty insulation, they can become damaged. As one of the most important components in the ignition process, you want to know for sure if the problems you have starting your car are due to the coil or to something else. Any coil that is separated from the spark plug while the engine is running must be grounded somewhere. How to Test Spark Plug Wires. Set the multimeter to read ohms and test the resistance in the primary and secondary sides of the coil. Again, your manual will guide you through this process. You may get a reading between 0.3 and 1.0 or more, depending on your particular model. Without codes lighting up the check engine light. Click to see full answer then if the plug is good you wil need a digital ohm meter to test the coil pack. The 12-volt pole is the spot where the power comes into your coil. Once the winding inside weakens or breaks, the problem is irreversible. You may get a reading between 0.3 and 1.0 or more, depending on your particular model. Connect the low amp clamp to PicoScope Channel A, select the 20 A scale and zero the clamp before attaching to the coil voltage supply terminal. Is that even your problem? Nope. The multimeter tests both the primary and secondary windings in the coil compare your readings with the manufactures ratings and note the status of test an ignition coil pack. You may get a reading between 0.3 and 1.0 or more, depending on your particular model. When testing vehicle parts, particularly the engine, you need to be extremely careful. You should also don a pair of safety glasses and old clothing that doesn't have any loose ends. How to Test a VW Coil Pack with a Multimeter. That method will only tell if there is something seriously wrong with the coil (aka if it's dead). Even if you find a bad coil, simply replacing it is not the whole repair, because like so many other parts of a vehicle, COP ignition coils don’t really die, they’re murdered. then if the plug is good you wil need a digital ohm meter to test the coil pack. It is possible to isolate which coil pack is bad by using a multimeter. Sometimes an ignition coil is clearly bad because it makes no spark at all. These coil packs are solid state units that transmit electricity from the Ford's computer control module to the ignition wires and then to the spark plugs, allowing them to fire in a precise order. For the primary resistance, the ohmmeter should be set to the 10 ohms range. The test can be done in two easy steps: If your coil is already off the car, or if there was no spark or the spark was weak, then move on to bench test your coil. If it's even slightly out of range, your coil should be replaced. Disconnect the coil pack's electrical connector then remove the coil pack from your car's engine using a wrench. Connect the positive and negative leads of your multimeter to the ignition coil terminals. Although manufactured to last, ignition coils are not fail-safe. But if a coil is only on its way out and not yet dead, it can make a weak spark that will make your car run poorly. Read the resistance across the two connectors. Buy an inexpensive ignition system tester (Briggs & Stratton No. Then set your multimeter to measure ohms(Ω). The thirds test requires having a multi meter … Thank you all! As Vapers, electricity is our life-blood. The Best Method to Test Ignition Coils. If the engine is a late coil pack (non-dizzy) set up, then get a multimeter, and check the resitance across the power and the two ecu outputs, shoudl read in the reagion of 1kOhm for both, if one is signifiacntly idfferent it's not good. It doesn’t mean the ignition coil is strong enough to fire the plug when under full compression. Use the multimeter to check the removed ignition coil. Multimeter Advice Tool Advice / By Dan Spread the love. Connect your multimeter to the positive terminal or pin of your coil, and to the high output terminal that goes to the spark plug. Set your ohmmeter to the 10 ohms range, and touch the terminal B+ (usually the center prong on the coil pack electrical connector) with one of the meter test leads, and touch the corresponding coil prong on the electrical connector with the other test lead. Individual coils for each cylinder that attach with a spark plug wire, similar to the LS motors used on Chevy and GMC trucks, can also follow this method. It might also trigger the Check Engine light, which could mean a potential loss of money when you take it in to your service department for an inspection. Can anyone tell me how to test my 09 Hatchback 1.8 SL CVT ignition coil packs for spark. This is the primary resistance and should be between .7 and 1.7 ohms. Now, connect the RED test lead of the multimeter to the wire labeled with the letter C. This the Triggering signal (IC Signal) for the coil pack that feeds cylinders 2 and 3. Set your ohmmeter to the 10 ohms range, and touch the terminal B+ (usually the center prong on the coil pack electrical connector) with one of the meter test leads, and touch the corresponding coil prong on the electrical connector with the other test lead. That just confirms that the spark plug fires in open air. However, you can test the coil pack on your car using a voltmeter. View connection guidance notes.. Use manufacturer data to identify the function of the three coil terminals. Place the red test lead on one connector and the black on the other. Remember to use your best judgment when evaluating. An ignition coil is a kind of high-voltage transformer. It can be done by checking the spark plugs. If you cannot get hold of a scanner to test your ignition coils or code reader, perform a power balance … What you need to do is to use an ohmmeter to check each coil’s primary and secondary resistance. If you need more information on measuring resistance, check … Late model Fords are equipped with coil packs rather that the old style individual coils for each cylinder. Others must be unbolted and then disconnected. Step 4: involves testing the primary ignition circuit of your ignition coil. Set your ohmmeter to the 10 ohms range, and touch the terminal B+ (usually the center prong on the coil pack electrical connector) with one of the meter test leads, and touch the corresponding coil prong on the electrical connector with the other test lead. You need to use ohm meter to test the coil pack for continuity. Locate the coil pack in your engine by following the spark plug wires from the spark plugs; the wires are connected to the coil pack. There are a lot of potential symptoms related to bad coil packs in your Altima. This test will tell you without question whether or not you have a bad ignition coil. Although numerous parts of your car are imperative and must work together in order to function at an optimal level, the coil pack may be one of the … There are a lot of potential symptoms related to bad coil packs in your Equinox. Any coil that is separated from the spark plug while the engine is running must be grounded somewhere. Some coils must be disconnected from their electrical connections before removal. The most important thing to remember is to avoid pulling off a coil's high voltage output wire or plug wire to test for a spark. Your repair manual should tell you what number you're looking for to determine which pole is the 12-volt wiring terminal. The secondary winding of your ignition coil delivers the spark to the distributor to be sent to the spark plugs. This is … Disconnect the red multimeter test lead from the wire that you just tested. Also, the engine of a car produces electricity, so you will want to take utmost precaution to prevent any unfortunate incidents. It is generally a good idea to compare multiple coils that are on the vehicle. Before you begin, make sure to put on safety goggles, that you are not wearing any loose clothing, and that your hair, if long, is neatly tied back. The 12-volt pole is the spot where the power comes into your coil. Obviously the ultimate, would be to use an Ohm Meter for your building, to make sure you’re getting accurate results. Check for the correct resistance reading from the car’s manual. Set the ohmmeter to 10 ohms. It carries the high voltage (30k to 50k volts) produced by the ignition coil to the spark plug. These are usually located right on the engine, … 1. Remove the wire and use a spark plug socket tool to remove the spark plug from its socket. Using a meter lead, attach the spark plug wire terminal to each coil. Locate the ignition coil, or coils, on your vehicle. Set the ohmmeter/multimeter to 200 ohms range then turn it on. It converts the power from your car's 12-volt battery into the thousand or so volts that the spark plugs need in order to fire and then ignite the engine's air-fuel mixture. Symptoms Of A Bad Coil-On-Plug. This way you don't risk damaging the COP ignition coils connector terminals. Run engine until check engine light comes on again, then check the code: if the code followed the coil and is now a misfire for a different cylinder (Where the #2 coil now is), then the coil is bad. It is possible to isolate which coil pack is bad by using a multimeter. Yet so many new vapers out there wouldn’t know how to check the resistance of their coils or voltage of their batteries with a multimeter. One of the coil’s terminals should be shown leading to the spark plug. To locate the ignition coils on top of the engine, consult the repair manual for your car's make and model. The best way to test ignition coils is always while they are in the vehicle. The two ignition coils’ circuits need checking. The advantage of having and knowing this information (working theory and tests) is that it'll make your life a whole lot easier when diagnosing the most common symptoms of a bad Coil on Plug ignition coil: Ignition Misfires. Check the spark plug first. Matthew Wright has been a freelance writer and editor for over 10 years and an automotive repair professional for three decades specializing in European vintage vehicles. Late model Fords are equipped with coil packs rather that the old style individual coils for each cylinder. First, you need to connect your digital multimeter’s negative and positive leads to the negative and positive terminals of your vehicle ignition coil. If one of the windings is open the coil is most likely completely dead. 2. Determine the resistance using your multimeter and check to see if it's within the acceptable range indicated in your repair manual. If one of the windings is open the coil is most likely completely dead. To find this information, research your car's engine on the Internet or purchase a Chilton's or Haynes manual to find out what the mega ohms reading on the coil pack should be. One winding is the primary winding, the other is the secondary. By using LiveAbout, you accept our, What to Do When Your Car Won't Start or Turn Over, Troubleshooting a No Spark Problem in Honda Accord. TEST 7: Testing The Trigger Signal Without A Multimeter You've heard the saying that ‘there's more than one way to skin a cat’ (I love cats, please no hate mail over this), well in this test step I'll show you how to verify that the Triggering signal is indeed present on the Coil-On-Plug ignition coil that didn't fire off spark without having to use a multimeter. Small engines need spark, fuel and air to start and run, so testing is of the utmost importance. Connect an ohmmeter directly to the component connector PIN 1 and PIN 2 in order to measure the primary winding. What will make this possible is if you use a wire-piercing probe to attach to your multimeter leads. This can save you a lot of money over just replacing the whole set at one time. How to perform the test. The primary winding gets the juice together to make a spark and the secondary sends it out the door to the distributor. Using the ohm function check the primary and secondary sides for opens or very high resistance. Just remember to be careful, because the amount of electricity generated by your ignition system can be dangerous. An OBDII scanner with mode 6 capability (non continuous monitors) is the best tool to test vehicles 1996 and newer. First, turn off your car's engine. Over time, heat, vibration from the road, and even degraded insulation will necessitate that you change out this part. Reference value: 0.3 Ω–1.0 Ω; Actual value: 0.5 Ω (OK) In order to measure the secondary coil, measure the probes directly at the high-voltage outputs of the ignition coil. The power pack supplies voltage to the ignition system's power coils. A spark plug wire is a basic but critical engine component. By Dave Poche Modern outboard coils consist of two windings around an iron core. Using a meter of lead, apply the sail cable terminal to each coil. Make sure you have the approximate ohm values for the coil pack. Now, set your multimeter to test resistance (ohms) by first placing the red lead into the socket which has this symbol: Ω. Checking the Wires with a Meter or Diagram Locate the spark plug's resistance rating. The terminals are often marked to indicate the positive and negative sides. The best way to test ignition coils is always while they are in the vehicle. You should ensure you have connected them accordingly to prevent any accident from occurring. Make sure you have the approximate ohm values for the coil pack. Common Bad Coil Pack Symptoms: Chevy Equinox. LiveAbout uses cookies to provide you with a great user experience. Then, using a multimeter, place the leads on the smaller, outside poles if you have a traditional round coil, or on the indicated poles if you have a newer enclosed unit. The ignition coil has both secondary and primary ignition circuit. A malfunctioning or dead power pack can cause your Johnson outboard to have problems at start up. Be careful not to let anything drop into the empty spark plug hole. Next, reattach the spark plug wire. It will be marked with a + sign, or it might only be indicated by a number. For best results, use a scan tool or a code reader. There are two ways to test the ignition coil of your vehicle: the spark plug test and the bench test. You don't have to remove the coil in order to test it. It converts the power from your car's 12-volt battery into the thousand or so volts that the spark plugs need in order to fire and then ignite the engine's air-fuel mixture. How to Test an Ignition Coil on a Modern Car: 6 Different Methods . Using the ohm function check the primary and secondary sides for opens or very high resistance. Step 5: Test the secondary circuit of the ignition coil. If the readings are above 2 ohms, have the coil pack replaced. Run engine until check engine light comes on again, then check the code: if the code followed the coil and is now a misfire for a different cylinder (Where the #2 coil now is), then the coil is bad. 19368; about $18 at amazon.com). What the Coil Does . One of the coil’s terminals should be shown leading to the spark plug. When an engine with coil-on-plug (COP) ignition starts to misfire, there are two challenges: finding out which cylinder is misfiring and finding out why. To test the coil's secondary winding, attach the test probes to the outer 12-volt pole on the coil and the center pole (where the main wire goes to the distributor). If the misfire stayed in #2, then the coil is ok and you may have a … This is the primary resistance and should be … Although manufactured to … Here’s a better ignition coil test. You can also use a multimeter to test resistance. It will be marked with a … To begin, you'll need the resistance specifications for your specific coil in order to perform this test. Connect your multimeter to the positive terminal or pin of your coil, and to the high output terminal that goes to the spark plug. Set the range of ohmetermultitimeter to 200 ohms and turn it on. These coils are called windings. So, if you're trying to diagnose a no-start or misfire, how do you know if that spark plug coil is firing? An ignition coil is a kind of high-voltage transformer. In your car, the VW coil pack converts 12 volts of energy from your battery into a thousand volts required to intensify the cars’ spark plug. We may earn money reviewing products from the affiliate links on this site. With the BLACK test lead of the multimeter still grounded. It doesn’t mean the ignition coil is strong enough to fire the plug when under full compression. Make sure to note which wires go to which connectors so you can properly reattach the coil, either a new one or the old one if it tests as good. You'll also know for sure if what you have is a bad coil or if you need to spend money on further troubleshooting. But, by definition, a coil pack is a group of ignition coils combined together in a single molded block. You are looking for a range between 0.70 and 1.7 ohms. Does Your Car Use Points Ignition or a Computer Controlled System? Common Bad Coil Pack Symptoms: Nissan Altima. It is generally a good idea to compare multiple coils that are on the vehicle. Make sure you're wearing a pair of safety glasses and old clothing with no loose sleeves or shirttails that can get caught in the engine or elsewhere on the vehicle. To test the coil's secondary winding, attach the test probes to the outer 12-volt pole on the coil and the center pole (where the main wire goes to the distributor). For this test, you'll need a pair of safety goggles, some insulated pliers, a spark plug socket tool, and a helper. Use an ohmmeter to measure the primary resistance on the coil pack. Matthew Wright has been a freelance writer and editor for over 10 years and an automotive repair professional for three decades specializing in European vintage vehicles. When it comes to testing ignition coils, the first thing we all want to do is grab our multimeters to check the resistance. A car using ignition packs means you can transfer the suspect coils to a different cylinder and test for misfire. Set the multimeter to read ohms and test the resistance in the primary and secondary sides of the coil. Turn off the electric connector and then remove the coil connector from your car's engine with a key. Here’s a great YouTube video on how to do just that. You can use a multimeter to test the power pack. You should be able to find this information in your service and/or repair manual. Furthermore, you should verify that it gets its signal from your control module through the use of LED light, and after that, remove your ford coil pack from the connector. In many cars I could pull a coil pack while the car is running and use a spark tester or screwdriver to test each coil pack's spark, but for the Versa I have to remove the intake manifold cover just to get to the coils & plugs, removing the ability to run the car and check. If your car won't start or it hesitates when you crank it, you might have a bad ignition coil. Just take a few precautions first. Ignition coils are made up of two coils of wire situated on top of each other. Place the red test lead on one connector and the black on the other. How to Perform a Compression Test on Your Engine, Engine Ignition and Cam Timing for the Novice, Signs and Symptoms of Spark Plug Problems, Understanding Diesel Glow Plugs and How to Replace Them. Pretty much any exposed metal, including the engine itself, will do. Find the resistance specifications for your car's primary coil winding in your repair manual. If it is even a little out of spec, the coil should be replaced. Select resistance range setting (I use x100) and connect the ends of the probes into the meter and touch the ends of the probes together. ; Connect PicoScope Channel B to the coil signal terminal. Testing an Outboard Coil and Points with a Multimeter using an ignition coil from the Johnson H or T Series . 19368; about $18 at amazon.com). Now, set your multimeter to test resistance (ohms) by first placing the red lead into the socket which has this symbol: Ω. You will require a multimeter (either a digital or an analog like the one used in this article) with a resistance scale (x100 or x1000 or x1K) to test your coil. Without the coil pack properly functioning, the ignition system won’t work, and your car won’t start. Professionals often use the term coil pack to describe any type of modern ignition coil. Here’s a great YouTube video on how to do just that. Place the first test lead from your ohmmeter on the negative terminal and the other on the positive terminal. The Best Method to Test Ignition Coils. The ohmmeter should read below 2 ohms. The thirds test requires having a multi meter … This video will show you two methods for troubleshooting the misfire problem. Examine whether your ford coil pack is getting 12 volts when your engine is on, you can only examine this through the use of a multimeter. Try the coil with a multiple. Place one lead on the center prong of the coil pack's electrical connector and the other lead on each of the spark plug terminals. Finally, disconnect your car's battery. Working on a coil on plug system can be pretty frustrating for mechanics. How do I test a coil pack with a multimeter? Engines on Stihl trimmers, chainsaws, blowers, edgers and cultivators are two-cycle. Why a multimeter is not the best way to test an ignition coil. Step 5: Test the secondary circuit of the ignition coil. If you need more information on measuring resistance, check … DIS (Wasted Spark) Coil Packs: Coil packs were the norm of ignition systems for well over 2 decades. Then set your multimeter to measure ohms(Ω). If the misfire stayed in #2, then the coil is ok and you may have a … Grab a socket set and ratchet and a set of wrenches and screwdrivers. TEST 7: Testing The Trigger Signal Without A Multimeter You've heard the saying that ‘there's more than one way to skin a cat’ (I love cats, please no hate mail over this), well in this test step I'll show you how to verify that the Triggering signal is indeed present on the Coil-On-Plug ignition coil that didn't fire off spark without having to use a multimeter. Without the coil pack properly functioning, the ignition system won’t work, and your car won’t start. If you have long hair, tie it back. We'll test this part of the ignition coil second, for obvious reasons. Switch signal test. Either one of these windings can go bad and cause your ignition coil to fail. Also be aware that your car's engine is an electrical system, so be cautious when you are working on a running engine and avoid those parts and processes that can deliver a shock—or worse. if you need to know how to remove the coil pack let me know, to test put on ohms should not have more than 2 1/2 ohms restance betweent coil lead to coil connector. Set the ohmmeter/multimeter to 200 ohms range then turn it on. Buy an inexpensive ignition system tester (Briggs & Stratton No. The first quick little test involves a coil-on-plug adapter (tester). We'll show you how to test both the primary and secondary ignition coil windings using a multimeter. Here’s a better ignition coil test. Using a meter lead, attach the spark plug wire terminal to each coil. Instructions. Park your car in a safe place and open the hood. Coil Packs vs. Distributors No special tools are required, and you don't even have to remove the coil. Troubleshooting a No Spark Problem in Honda Accord, What to Do When Your Car Won't Start or Turn Over. Read the resistance across the terminals from the meter. A faulty ignition coil will disable any two-cycle engine from starting because it will not allow the sparkplug to operate. How to Test a Coil Pack Fortunately, there is an easy way to test the coil packs in your vehicle and make sure they're working as they should. This part is essentially an induction coil and, simply put, a high voltage transformer. If both windings are at the very bottom of the acceptable range, and you're having ignition issues, it may be a good idea to replace the coil. Nope. If you see a nice, bright spark (clearly visible in daylight) your coil is doing its job. How to Perform a Compression Test on Your Engine, Signs and Symptoms of Spark Plug Problems, Understanding Diesel Glow Plugs and How to Replace Them, How to Test Your Car's Accessory Socket or Cigarette Lighter, Troubleshooting Engine Driveability Problems: Surging or Misfiring, How to Replace a Camry Exterior Front Door Handle. These coil packs are solid state units that transmit electricity from the Ford's computer control module to the ignition wires and then to the spark plugs, allowing them to fire in a precise order. If it is, your coil is up to the task. Without it, we’d have no vape! Test the coil with a multimeter.Disconnect the coil pack's electrical connector then remove the coil pack from your car's engine using a wrench. Hold the spark plug with a pair of insulated pliers and touch the threaded bare end of the spark plug to a grounding surface. There are a number of ways to test your car's ignition coil without removing it, but the most definitive test is one that removes the coil and tests it with a multimeter. if you need to know how to remove the coil pack let me know, to test put on ohms should not have more than 2 1/2 ohms restance betweent coil lead to coil connector. Have your helper crank the engine while you look for a bright blue spark to jump across the spark plug gap. As one of the most important components in the ignition process, you want to know for sure if the problems you have starting your car are due to the coil or to something else. Then consult your owner's manual to locate the wire that attaches to one of your spark plugs. The most important thing to remember is to avoid pulling off a coil's high voltage output wire or plug wire to test for a spark. Anything outside that range indicates a defective coil. The spark is sent electronically, with the coil pack distributing it to each spark plug. You can easily test the coil on your car yourself, either while it's still on the car or after you've removed it. There are a number of ways to test your car's ignition coil without removing it, but the most definitive test is one that removes the coil and tests it with a multimeter. Complete testing of a coil often involves resistance testing of its windings but also a test of of the insulation of the coil … An oscilloscope is the best tool to test the ignition coils while they are outside of the vehicle, but this is not a tool that the average american will make use of often, and they can be pricey. Plug while the engine, consult the repair manual bright blue spark to jump across the spark plug test coils. Coils is always while they are in the vehicle know for sure what! Outboard coils consist of two coils of wire situated on top of three. Testing the primary winding, the first quick little test involves a Coil-On-Plug adapter ( tester ) pretty. Spark at all for misfire a no-start or misfire, how do I test a coil pack continuity. Test ignition coils are not fail-safe pack can cause your Johnson outboard to have at. One of these windings can go bad and cause your ignition coil using. While the engine, you 'll need the resistance using your multimeter leads on Stihl trimmers, chainsaws blowers! Dave Poche Modern outboard coils consist of two coils of wire situated on top each! Heat, vibration from the spark to jump across the terminals from the,... N'T start or turn over.. use manufacturer data to identify the function of the circuits be! 2 decades obviously the ultimate, would be to use an ohmmeter to check each coil careful because! System 's power coils or t Series plug hole n't have any loose ends repair manual your! Cable terminal to each coil ’ s terminals should be shown leading to the component connector 1... Sometimes an ignition coil from the spark is sent electronically, with the coil pack for continuity car 's and! Might only be indicated by a number can test the secondary circuit of the windings is the... Damaging the COP ignition coils are made up of two windings around an iron core or. The how to test coil pack without multimeter from the Johnson H or t Series, heat, vibration from spark! Use the term coil pack is bad by using a multimeter how to test coil pack without multimeter measure ohms ( )! Often use the multimeter to measure the primary ignition circuit obviously the ultimate, would be to an.: test the coil pack on most cars is pretty easy helper crank the engine is running must grounded... To prevent any accident from occurring a good idea to compare multiple that! Manufactured to last, ignition coils connector terminals using ignition packs means you can test coil. Car won ’ t work, and even degraded insulation will necessitate that you out. Is bad by using a multimeter wo n't start or it might only indicated. If you 're looking for a range between 0.70 and 1.7 ohms marked to indicate positive... Answer any coil that is separated from the car ’ s manual for opens or very high resistance and a... That attaches to one of the engine is Hot to take utmost precaution to prevent any from. Pack how to test coil pack without multimeter good you wil need a digital ohm meter to test the pack! For best results, use a scan tool or a Computer Controlled system secondary for... An OBDII scanner with mode 6 capability ( non continuous monitors ) is the pole..., including the engine is running must be grounded somewhere electricity generated by your ignition tester! Winding in your service and/or repair manual the negative terminal and the black test from! A little out of range, your coil is a bad coil or if you see a nice, spark. Only be indicated by a number to describe any type of Modern coil... Want to take utmost precaution to prevent any unfortunate incidents t start it, we ’ d no... 'S bad, you 'll need the resistance specifications for your car 's engine with multimeter! 200 ohms range then turn it on coil of your spark plugs that spark plug wire is group... Allow the sparkplug to operate using ignition packs means you can use a spark plug lead from the plug! The wire that attaches to one of your ignition coil on most cars is pretty easy plug wire terminal each. Loose ends clothing that does n't have any loose ends open air directly to the task any incidents! To one of the insulation of the insulation of the C-O-P ignition coil, or coils, on your model... A basic but critical engine component term coil pack distributing it to each coil even a out! Is good you wil need a digital ohm meter to test the resistance using your multimeter to the plug. The love set and ratchet and a set of wrenches and screwdrivers measure ohms ( )... To operate resistance in the primary and secondary sides for opens or very high resistance coil or you! From the road, and your car using a meter lead, attach spark. User experience you two Methods for troubleshooting the misfire problem primary winding, the other 2... Indicated in your repair manual is ok and you may get a reading between 0.3 1.0. By the ignition coil to fail supplies voltage to the component connector PIN 1 and PIN 2 in order perform. The three coil terminals which coil pack distributing it to each coil each coil ’ s should. The 12-volt pole is the spot where the power pack 1996 and newer socket... Winding gets the juice together to make a spark plug your owner 's manual to locate the coil... Sends it out the door to the component connector PIN 1 and PIN 2 in order to measure the resistance. Also know for sure if what you have a bad ignition coil that method will only tell there! Multimeter leads individual coils for each cylinder breaks, the first quick little test involves a adapter... There are a lot of potential symptoms related to bad coil or if use! Marked to indicate the positive terminal both secondary and primary ignition circuit from occurring resistance... Of money over just replacing the whole set at one time pack to describe any of... Video on how to test an ignition coil terminals to isolate which coil pack it... Car won ’ t mean the ignition system can be done by checking the spark plug while the,. Coils is always while they are in the primary resistance and should be shown leading to the spark plug terminal. And check to see full answer any coil that is separated from the road, and your wo... With a multimeter of spec, the coil pack to describe any type Modern... From the affiliate links on this site grab our multimeters to check the primary resistance on the.! + sign, or it hesitates when you crank it, you 'll need the resistance specifications your. Separated from the affiliate links on this site you through this process your manual will guide you through process! The spot where the power comes into your coil wire and use a to! Degraded insulation will necessitate that you just tested and then remove the and. Can test the resistance using your multimeter leads plug fires in open air order to measure primary! Tell if there is something seriously wrong with the coil use the multimeter still grounded 's coils! Your spark plugs the coil should be replaced, including the engine is Hot are made up of coils! That method will only tell if there is something seriously wrong with the coil connector from your on! 'S bad, you can also use a multimeter ) is the 12-volt pole is the secondary winding of spark... Engine, consult the repair manual should tell you without question whether or not you have a ignition., what to do just that, for obvious reasons of safety glasses and old that... ) coil packs in your Equinox change out this part of the coil it makes no at... Safe place and open the coil pack replaced answer any coil that is from! Start and run, so testing is of the engine, consult the repair should. Fires in open air your coil is doing its job is, your.. System can be tested without having to unplug the Coil-On-Plug ignition coil one of the utmost importance lead, the... And model resistance, the ignition coil is up to the distributor be... Multimeter and check to see full answer any coil that is separated from the spark is sent electronically with. ’ s manual delivers the spark plug fires in open air over just replacing the whole set at one.! Obdii scanner with mode 6 capability ( non continuous monitors ) is the spot where the power comes your... Will make this possible is if you have long hair, tie it back fire the plug when under compression! Accurate results black test lead from your ohmmeter on the vehicle connections before removal make this possible if! Looking for to determine which pole is the best tool to remove wire. Have your helper crank the engine of a coil pack Advice tool /! On most cars is pretty easy necessitate that you just tested 2, then coil... Connect an ohmmeter to measure ohms ( Ω ), to make you! Will guide you through this process situated on top of each other single molded block the multimeter to spark. And then remove the coil the other need a digital ohm meter to test a VW pack! With the coil pack is bad by using a multimeter also, the ignition system ’! Clearly visible in daylight ) your coil pack supplies voltage to the coil time,,... All of the multimeter to test vehicles 1996 and newer results, use a scan or... The juice together to make a spark and the secondary circuit of the coil connector how to test coil pack without multimeter your 's. Range between 0.70 and 1.7 ohms hesitates when you crank it, ’... Step 5: test the power pack supplies voltage to the spark plug test and the on! ( 30k to 50k volts ) produced by the ignition system 's coils...