Distributor Pickup Coil Symptoms


I'm thinking it's got a bad module. The ignition. Troubleshooting a faulty or inoperative ignition should always use a logical approach. It doesn’t mean the ignition coil is strong enough to fire the plug when under full compression. The distributor cap has terminals arranged in a circle. Using an ohmmeter, attach one lead to the distributor base and the second lead to one of the pick-up coil terminals of the connector, as shown in test 3 in the accompanying figure. I took the ICM out and the pins looked fine, the pick up coil harness looks clean and good. How do you know if the pickup coil in your distributor is bad - Answered by a verified Auto Mechanic We use cookies to give you the best possible experience on our website. If you feel that the pictures supplied don't show enough, or you need more information about a part then you may not be alone and we can add pictures or information to help make a decision to buy. Buy an inexpensive ignition system tester (Briggs & Stratton No. If there is only one set of points per coil then it is a single point system. So far it's new AC Delco plugs last year with about 3000klm on them if that, new ignition coil tonight, new cap and rotor button, all the harnesses going to the coil and the distributor are clean. Sadly, I think the symptoms are very similar. I would suspect more the wrong coil or a ground problem somewhere. Since diagnosing the module, pickup, and the coil of an HEI distributor is a little trickier than an old-school points distributor, we checked in with the folks at Performance Distributor to get some diagnostic input. ; The profile ignition pickup (PIP) sensor, which is what Ford calls the crank sensor, gets power from the ICM and as the engine cranks it starts to generate a crankshaft position signal (called the PIP signal). ) gm 262 v-6 1988-1992 distributor and ignition components parts. The pick ups may go bad once in a while, but if you are having multiple failures with open pick up coils, look for high voltage arcing issues within the distributor or a defective spark module leaking higher-than-normal current through the the pick up coil. Points are the simplest ignition system since the points are both the sensor and actuator. There are 6 major components that work together to produce spark, if any of these is defective, spark will be lost. In a CDI ignition system,a storage capacitor is charged to a high voltage (a few hundred volts) by the flywheel charging coil and, at the proper moment quickly discharged into the primary winding of the ignition coil,which is actually a stepup pulse-transformer. We carry the biggest selection of Jeep Wrangler YJ ignition parts around! If you are looking for OEM Jeep replacement ignition parts or want to upgrade your Wrangler YJ ignition replacement parts we have everything that you will need!. This is the most complained problem about Nissan 720 Pickup at car repair statistics site CarComplaint. This is an authentic ignition coil designed for use with Husqvarna handheld gas powered leaf blowers. So, you'll see "Defective ECU" listed in many codes as a probable cause. Car runs great cold but dies suddenly when hot. I replaced the distributor, no more misses. The Distributor pickup is only about $25-30 but you need to take out your distributor and get the bearings pressed out of it in order to get the pickup changed. using an ignition coil from the Johnson H or T Series. Cheers, Ken. The spark plug wires plug onto the top of these terminals. The plug cap should be removed for this test because it can add resistance. Place the negative lead onto the metal body of the ignition coil – again ensuring it makes proper contact. Power is supplied to the ignition coil thru' the wire labeled with the number 2. Pickup coils rarely go bad, but at times they do. The second part of the test tells you whether or not the coil is in good order. To begin, you will need to unplug the connector. And here are some common symptoms of bad ignition coil: 1. Remove the rotor and pick-up coil leads from the module. Not only that, the test can be accomplished in 4 easy tests, the results of which will let you know if the ignition coil is truly fried or not. by Eduardo Ruelas on. 19368; about $18 at amazon. Your shop manual should have the correct specifications for your specific ignition coil. What we will be doing here is troubleshooting these ignition parts. In general, if the charging system is. gm ignitions wiring a dual connector coil. Small gap, lower voltage. Here are a couple of other symptoms your vehicle may experience with a misfire condition:. I ask because the technician told me that there is no way to do so, and that the coil testing is reliant on the diagnostic computer testing, which in this case, did not note a problem with the coil. On late model engines with coil-on-plug (COP) ignition systems, there are no plug wires because the coils are mounted directly on the spark plugs. A small current flows through the points momentarily when they close, and this is what tells the spark coil exactly when to release the jolt of electricity that powers each spark plug. Tim, a thought came to my mind after thinking about your problem with the coil. Tune in for more details along with photos only in Modifief Mustangs & Fords. This is the most complained problem about Nissan 720 Pickup at car repair statistics site CarComplaint. 1973 - 1979 F-100 & Larger F-Series Trucks - Pickup coil testing? intermittance possible? - hey guys im curious if my pickup coil is bad although the truck still runs? i dont know if theres such a thing as a p/u coil going bad or on its way out or weaken over time?. The ignition. No Spark at Spark Plug Gap. Fortunately, they are not that difficult to test. Read this article by Fralin Pickups to quickly identify your pickup's coil and magnetic direction. On late model engines with coil-on-plug (COP) ignition systems, there are no plug wires because the coils are mounted directly on the spark plugs. Street Fire CDI, PN , to an MSD Distributor BLACK/ORANGE GRAY TO TACH5/5(2). Disconnect the ignition coil ground wire from the negative terminal on the coil (Green Wire). They open, and the field collapses. My coupe has a Ford 392 Stroker 475 HP P/N M6007C392RT) engine with an MSD ignition system consisting of an MSD 8202 Coil, MSD 6AL Ignition module and MSD distributor with mag pickup. Since most of the later model GM cars and trucks have gone to breaker-less ignitions, they no longer use a coil, but use a coil pack. Signs & Symptoms of a Bad Magnet Pick Up HEI Distributor. Coils vary in size and shape to meet the demands of different vehicles. Three short screws mount coil cover to the cap. But, the pickup coil can develop shorted turns. by Bob O’Neill and Bob Lincoln. The purpose of this item is to deliver electric current to the spark plug. Symptoms of a BAD Ignition Control Module The following are usually the most common symptoms of a BAD ignition control module on this type of GM distributor mounted ignition control module: The car (or truck, or mini-van, or van) will Crank but NO START. The backfiring caused by your vehicle can indicate the symptoms of the ignition coil failure in its early stages. Ignition coil screw length, and wire-type coil groundstrap. Once you have voltage, crank the engine and the voltage should stay present. The ignition coil is really two coils intertwined, with the leads to one going to the spark plug, and the leads to the other going to the points. I just got it back from the shop. Hope this helps 95' mustang gt,edelbrock performer upper and lower,mac shorties, offroad x-pipe w/flowmaster a/t catback, 3:73 gears, hurst shifter, airride suspension. Insert a 0. If your low on funds, this can save a lot of cash. Switch and combination TPS are tested with an ohmmeter. It should read 12 volts. distributor pickup coil bad Drivetrain & Performance distributor pickup coil bad - Chevy Nova Forum Steve's Nova Site is an automotive enthusiast website dedicated to the 1962 - 1979 Chevrolet Nova, Chevy II and Acadian automobiles. I have read in various places that due to the pickup coils low resistance (0. One of the most common symptoms associated with a faulty ignition coil is engine performance issues. The coil is easy to test using an ohm meter. Worn distributor shafts can cause the reluctor to hit the coil pole. distributor rotor b. When a signal is received by the trigger pickup passing over the flywheel magnet, the CDI will discharge the stored energy into the wires leading to the ignition coil. checked everything and the final conclusion is a bad pulse. Don't know about the crank sensor. Understanding, Testing and Calibration of Ignition Coil Dwell Time. This current is stored in a capacitor within the CDI unit. Symptoms of a BAD Ignition Control Module The following are usually the most common symptoms of a BAD ignition control module on this type of GM distributor mounted ignition control module: The car (or truck, or mini-van, or van) will Crank but NO START. The HEI design incorporates the vacuum advance mechanism, the ignition coil and a permanent magnet assembly that has a pole lined with teeth and a pick-up coil. This article will walk you step by step thru' the testing and diagnostic of a MISFIRE or NO START Condition. REPLACEMENT IGNITION COIL. Simply put, the bottom line is without spark the engine doesn't run. Is the ignition amplifier mounted to the exhaust elbow or on the distributor itself?. Shop, read reviews, or ask questions about Ignition Coils at the official West Marine online store. You've described the tell-tale signs of a leaking coil. On newer vehicles, a coil pack replaces the distributor. until it doesn't start at allno spark at all 4 plugs. 1973 - 1979 F-100 & Larger F-Series Trucks - Pickup coil testing? intermittance possible? - hey guys im curious if my pickup coil is bad although the truck still runs? i dont know if theres such a thing as a p/u coil going bad or on its way out or weaken over time?. Had original pickup coil and ignition module, apparently Chevy had a problem with these in the 90s. This wire should be part of your original wiring or can be purchased separately. What Are The Symptoms Of A Bad Distributor Cap Okay, we have a 1993 Nissan Hard body, manual transmission. The pickup coil rotates counterclockwise and in effect advances the timing by the amount of rotation. The ignition coil receives a voltage of 12V from the car's battery and multiplies it to a higher voltage level. The ignition relay then switches the power on and lets it reach to the systems that are required to be powered up so that your vehicle can function. and the pick-up coil tooth. 0 engines in particular. Troubleshooting Outboard Motor Magneto Ignitions Fluke Corporation 3 Measure the contact resistance as follows: place the multimeter in the Ω function and hold the probe tips tightly together to obtain a reference reading with the tips shorted. He also says that this is the first 1-piece ignition coil that he has had to replace in 30 years of business. In simple terms, the ballast resistor in a Mopar limits the amperage,. Spark Plugs. 0l v6,positive side of coil has 12v, no pulse on negative side of coil, tried a known good igniter & a complete distributor (with pickup coil, harness etc) still no spark, what am i missing ?. Fires a nice blue flame for about 2 revolutions of the motor, and then stops. have a 77 280z and i have changed ignition coil the pickup coil and it still wont fire 9 Answers I have a 1977 datsun 280z changed ignition coil and pickup coil and it still won't fire help please Datsun 720. -Checked throttle position sensor. ignition module will continue charging the coil without the coil's discharging, resulting in excessive heat buildup in the coil, which can fry the ignition module and/or coil. If the coil can’t get the spark through the coil wire then that spark is going to try and go somewhere in the coil and can really damage the coil. The Dyna- Mod is located inside the distributor and has the green and white wires from the pick-up attached on one end and a terminal block on the other. Fuel injector symptoms for bad, faulty, dirty, clogged, leaking injectors: poor starting, idle, performance, fuel consumption, failed emissions, detonation. Signs & Symptoms of a Bad Magnet Pick Up HEI Distributor. It should read 12 volts. The pickup coil monitors the rotation of the distributor and triggers the ignition system at the optimal moment to produce the best timed spark for best engine performance. 7 Bad Ignition Coil Symptoms. Hook a remote start switch to the starter solenoid and a dwell meter to the distributor. have a 77 280z and i have changed ignition coil the pickup coil and it still wont fire 9 Answers I have a 1977 datsun 280z changed ignition coil and pickup coil and it still won't fire help please Datsun 720. Remove the distributor from the engine. After I got it all back together and the truck started, I disssembled the horseshoe distributor connection and cleaned and tightened the connectors for good measure. Solder the wire joints using a linemans splice, and squirt some rtv into a heat shrink tube and shrink it over the splice. If there's no spark, turn the ignition off and continue: 5. Since the #1 was out, I bumped it to TDC. A bad ignition coil is a common reason for a lawnmower that fails to "catch" when you attempt to start it. can be a real butt pain to diagnose,since many other causes have similar symptoms,like corroded wiring for example. High Tension Magnetos have the ignition coil on the stator plate under the Flywheel. I'm thinking it's got a bad module. But not being a mechanic I have no idea. The ignition coil on your Dodge Ram Pick Up, Ram Van, Dakota with the 3. Any advice and/or info will be appreciated. The only items I haven't replaced are is the ignition module and the pickup. Well I replaced the pick up coil and all is well now. There are 6 major components that work together to produce spark, if any of these is defective, spark will be lost. The larger the gap, the higher the voltage need to bridge the gap and create a spark. PICK-UP COIL RESISTANCE SPECIFICATIONS TABLE. Two tests - Primary/Secondary resistance on the Ignition coil, primary is across the connector pins, secondary is from on pin to the part where the coil to distributor wire connects. I replaced the distributor, no more misses. until it doesn't start at allno spark at all 4 plugs. Bad ignition coil symptoms also include the turning on of the engine light code located in the combination meter. The common code is P0351, which indicates a primary or secondary-level circuit malfunction in the ignition coil. If three wires test out at around 10,000 ohms and one is 100,000 ohms, its time to replace the set. A bad ignition coil sometimes causes a vehicle to not start at all. Sadly, I think the symptoms are very similar. Connect an ohmmeter to each terminal of the pick-up coil connector or wire and ground (one terminal at a time). There are two general types of ignition systems: "coil storage" (reactor) systems that build up a magnetic field in a coil, then discharge it as high voltage across the spark plugs, and "capacitative discharge" (transformer) systems that build up a charge on a capacitor, then discharge the capacitor through a coiI (transformer) that induces a. That's one thing a distributor does. Remove the rotor and pick-up coil leads from the module. The backfiring caused by your vehicle can indicate the symptoms of the ignition coil failure in its early stages. You will find that the primary resistance will be a low number; 0. Troubleshooting a faulty or inoperative ignition should always use a logical approach. HEI and ELECTRONIC SPARK CONTROL FUNDAMENTALS AND TROUBLESHOOTING Troubleshooting the HEI coil in cap ignition. To begin, you will need to unplug the connector. Buy a 1992 Ford F150 Pickup Coil at discount prices. and the pick-up coil tooth. Coil primary resistance varies by model, likely is 0. 3 & 6 Cylinder. Suzuki GSXR750 GSXR 750 2003. Solder the wire joints using a linemans splice, and squirt some rtv into a heat shrink tube and shrink it over the splice. but when I fixed the timing, I guess everything else was out of time then. On a flywheel, there are marks indicating where Top-Dead-Center of each piston is. com as Symptoms of a Bad or Failing Distributor Rotor and Cap. Browse our daily deals for even more savings! Free delivery and free returns on eBay Plus items!. Signs of a Bad Pickup Coil. Here’s a better ignition coil test. Maybe you don't really need to know how an ignition coil works to test it, but it helps. One of the more popular ignition upgrades on both modern and classic muscle cars is the ignition coil. Its two main roles are to create a spark strong enough to ignite the air/fuel mixture for combustion and to control the timing of the spark plugs by opening and closing the ignition coil ground circuit. Wrong angles can cause reluctor/pole collisions when the mounting plate advances. These range from emissions problems to faulty O2 sensors to problems with the ECM. Check the secondary resistance between the two spark plug caps if the ignition coil has two spark plug wires. By connecting a _____ to one of the wires, you can measure maximum coil output. The distributor's job is to: 1. If the coil is not completely fried and missfires happen only when you are climbing hill or requesting more power it's gonna be pretty have to identify the one to replace by an old way like removing sparkplug wires when the engine is running. Not only that, the test can be accomplished in 4 easy tests, the results of which will let you know if the ignition coil is truly fried or not. Take the cap off, unplug the wires going to the distributor, remove the rotor and the pickup coil is under the rotor and held. Thick Film Ignition (TFI) modules were used on Ford vehicles with distributors from the early 1980s to the mid-1990s. I have had an ignition coil and an ignitor unit to go bad on my G9 (at different times) but have not had the pickup coil to give me a problem so far. My car was doing the exact same thing after I installed a msd rtr distributor, turns out every wire under the hood of an 85gt is a resistance wire. I certainly wouldn’t be looking at the module if I had a rough running or misfiring complaint. Coils vary in size and shape to meet the demands of different vehicles. Only a few models have the external coil, but most today have the coil combined with the cap. Ignition Coil Failure and Testing. A typical circuit has the warning light wired directly to a terminal at the rear of the alternator. Reset the air gap to 0. It should resistance should be between 182 to 222 ohms. If the distributor fails to produce these electrical impulses properly, the ignition system can quit functioning. Remove coil wire from the rear five-wire clip, the center three-wire clip, and the front one-wire clip along the lower side of the right valve cover. Order Ignition Coils for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. Just figured I would replace my 30 year old coils and pick-up to be safe. If ya can't handle replacing the HO 'stator' then ya probably should keep away from butter knives and other complex technical items. Most Mercury Outboard Ignition systems use a red Wire and/or red/white stripe for the high speed charge coil, and blue and/or blue/white stripe for the low speed change coil. Symptoms of a bad ignition module are sudden engine stalling or power loss while the car is in motion, engine stuttering accompanied by a smell of gasoline and an inability to restart the engine following a stall. You need to mark the distributor in relationship to the rotor and cap. The 2 wire plug from the coil to the distributor module is used to power up the distributor and provide a coil trigger for spark. Look for the reading on the multi-meter. If the test light is not lit, verify you have a good ground. You've described the tell-tale signs of a leaking coil. I will try to keep the explanation in layman's terms for simplicity. This causes the coil to suddenly lose its ground, generating a high-voltage pulse. Set the meter to Rx10: Test the resistance of the primary windings - touch both meter leads to the terminals on the coil. Symptoms: as above. Q: What is the reliability of your Electronics Module and Optical Trigger? A: We have sold a total of 1428 Crane/FAST XR700 modules and 1390 Optical Triggers since 1993, the vast majority as part of a complete kit. It wouldn't hurt to do a compression test on the cylinder with the suspect bad coil. Skip the Repair Shop Our Mechanics Make House Calls. According to MSD most ignition problems are bad ignition wires or a bad coil wire. Providing its customers with quality outboard boat motor ignition parts for Johnson Evinrude Mercury Mariner Force Yamaha and Chrysler at great prices. Overlooking the basics will leave to frustration and unnecessary time and expense. Here’s a better ignition coil test. If your vehicle is backfiring, this can indicate early symptoms of an ignition coil failure. Very true about the pickup coil. The service manual has a check to see if it is putting through 5v with the switch on, and it is. But, the pickup coil can develop shorted turns. I ask because the technician told me that there is no way to do so, and that the coil testing is reliant on the diagnostic computer testing, which in this case, did not note a problem with the coil. ; The profile ignition pickup (PIP) sensor, which is what Ford calls the crank sensor, gets power from the ICM and as the engine cranks it starts to generate a crankshaft position signal (called the PIP signal). If you feel that the pictures supplied don't show enough, or you need more information about a part then you may not be alone and we can add pictures or information to help make a decision to buy. Pull the Flywheel cover and find the points wire that comes out of the top of the crankcase. Engine stalls out after the engine warms up. If your GM car (or pick up, van , or mini-van) is suffering a misfire; the check engine light (CEL) will be on to let you know that YES, there really is something wrong. Q: What is the reliability of your Electronics Module and Optical Trigger? A: We have sold a total of 1428 Crane/FAST XR700 modules and 1390 Optical Triggers since 1993, the vast majority as part of a complete kit. until it doesn't start at allno spark at all 4 plugs. Appears to be some phanthom issue that nobody can nail down. Generally speaking, coil packs are much more reliable than distributors, because. A magnetic pickup coil senses when a tooth passes and sends a signal to the control module to fire the coil. [adapted from Import Car Magazine, Feb 03] Why Coils Fail. 19368; about $18 at amazon. The ignition. But not being a mechanic I have no idea. 006 starting 1977) nonmagnetic feeler gauge between the reluctor tooth and the pick-up coil tooth. Went for a long ride yesterday and two separate times two cylinders stopped firing for about a minute. to gray tach diagramweb. Small engines need spark, fuel and air to start and run, so testing is of the utmost importance. ignition module will continue charging the coil without the coil's discharging, resulting in excessive heat buildup in the coil, which can fry the ignition module and/or coil. Hook a remote start switch to the starter solenoid and a dwell meter to the distributor. dwell meter c. The wire runs from the alternator through the bulkhead and up to the warning light mounted in the dashboard. My '92 318 (original owner) doesn't want to run. This is a used item signs of wear is expected otherwise in a solid condition. The spark plug wires plug onto the top of these terminals. The coil is what produces the high voltage necessary to generate a spark. Whenever the cam pushes the lever, it opens the points. First, unplug the ignition pickup coil connector. can be a real butt pain to diagnose,since many other causes have similar symptoms,like corroded wiring for example. This module is reasonably priced, has a basic set of features useful for a mildly modified engine, and is a very popular and proven unit. ride good one day then ride like crap the next. Module Pickup for Mallory YLM Electronic Ignition Distributors Ignition Module used for Mallory Unilite Marine YLM series Magnetic Breakerless distributors. Secondary is likely 8,500-11,000 ohms. You may have to register before you can post: click the register link above to proceed. As the ignition pickup essentially functions as the activation switch for the entire ignition system, when it fails , it can greatly affect the operation of the vehicle. I will try to keep the explanation in layman's terms for simplicity. He said he checked fuel system and O2 sensor. Plugs, wires, rotor and ignition coil were changed and the problem persisited with intermitten problems. Ignition Coil Replacement for the Triumph Thunderbird Sport. MSD Pro billet distributor, problems If this is your first visit, be sure to check out the FAQ by clicking the link above. I don't know how you can check the timing if the engine won't start. One of the first symptoms of a bad ignition pickup is an engine that stalls. Cbr 600f2 no spark issue. I'm thinking it's got a bad module. Was purchase from the dealer. The coil supplies power to the spark plugs from the generator. 3) HT leads. The fuel injectors also fail to fire, which may lead to car not starting. A cam in the center of the distributor pushes a lever connected to one of the points. Not only that, the test can be accomplished in 4 easy tests, the results of which will let you know if the ignition coil is truly fried or not. 5 to 5 ohms, for example. On some cars, because of limited space, the only way of replacing the contact-breaker points or condenser is with the distributor removed. Ignition Coils - Performance. The 2009 Chevrolet Aveo has 7 problems reported for ignition coil failure. Suzuki GSXR750 GSXR 750 2003. If the distributor fails to produce these electrical impulses properly, the ignition system can quit functioning. If you experience flickering headlights, stalling or strange noises when driving, your car isn't haunted; chances are it's just a failing alternator. Cheers, Ken. Small gap, lower voltage. The only unit that tested bad was the control module that I had tested at AutoZone. Bad Coil Symptoms in an Outboard Motor When problems do arise with the ignition system it is rarely the coil, but they do sometimes fail. Pull the Flywheel cover and find the points wire that comes out of the top of the crankcase. secondary wire b. dwell meter c. They must stay closed long enough (they DWELL closed for a bit!) to energize the field. The cost is just $30-40 bucks more but its worth it. A cam in the center of the distributor pushes a lever connected to one of the points. Ignition module failure can be caused when the unit overheats. It is generally located inside the distributor, which means it is quite easy to access. This ignites the fuel and makes a car run. I figured one of my coils was bad, but realize it could also be a bad pick-up coil, or something else like a bad connection. If your GM car (or pick up, van , or mini-van) is suffering a misfire; the check engine light (CEL) will be on to let you know that YES, there really is something wrong. Overlooking the basics will leave to frustration and unnecessary time and expense. Tests for TB ignition: W/ignition key on AND BILGE WELL VENTILATED OF GAS FUMES!!! Connect your voltmeter neg. Testing the ignition coil in your Ski Doo snowmobile will inform you if starting problems stem from faulty equipment. Ok, The pick-up coil is the stator inside the distributor. Is the ignition amplifier mounted to the exhaust elbow or on the distributor itself?. Trouble Codes and Possible Causes: Early 22RE; Later 22RE. As the ignition pickup essentially functions as the activation switch for the entire ignition system, when it fails , it can greatly affect the operation of the vehicle. Note pick-up coil terminal identification on the distributor. ) gm 262 v-6 1988-1992 distributor and ignition components parts. On most GM products the symptoms are as follows. This is the reference reading. The plug cap should be removed for this test because it can add resistance. The wire runs from the alternator through the bulkhead and up to the warning light mounted in the dashboard. 5 to 5 ohms, for example. A crankshaft sensor is comparable to the _____ in a distributor. 2 WIRING PROCEDURE The 3 wires coming from the UNILITE ® Distributor must be connected using the distributor wire harness furnished (see Figures 1 and 2). If anyone has a fix I'd love to know about it or if a recommendation for a better system I'm all ears. If that fixes the problem, great. 1973 - 1979 F-100 & Larger F-Series Trucks - electrical problem, pickup coil? - is there something that will make the pickup coil in the distributor go bad? i just put one in last week, and it went bad today. A bad ignition coil sometimes causes a vehicle to not start at all. Had original pickup coil and ignition module, apparently Chevy had a problem with these in the 90s. I have had an ignition coil and an ignitor unit to go bad on my G9 (at different times) but have not had the pickup coil to give me a problem so far. It ignites the fuel and provides the engine enough power to run the vehicle. Kohler ignition coils for Small Engines. I don't know how you can check the timing if the engine won't start. Just move the distributor housing to match the rotor and cap. Other systems used an electric eye with a shutter wheel to send a signal to the electronics that it was time to trigger the coil to fire. I figured one of my coils was bad, but realize it could also be a bad pick-up coil, or something else like a bad connection. I couldn't tell you if it was the pick up coil, the worn gear or worn bearing of the dist. Spark Plugs. It could be misadjusted, have a bad wire or be dead. Ignition Coil Troubleshooting: (No) Fire in the Hole. Lots of answers talking about misfiring, rough running etc. The pick-up coil/stator located inside of the distributor is what generates the dwell signal that fires the ignition coil. I just got it back from the shop. The pickup coil monitors the rotation of the distributor and triggers the ignition system at the optimal moment to produce the best timed spark for best engine performance. Checking and replacing the pick-up coil. This ignites the fuel and makes a car run. Spark Plug Tubes. Ignition Coil Test Test using a Multi-Meter: Unplug the wires going to the coil and remove the spark plug caps. using an ignition coil from the Johnson H or T Series. The coil is what produces the high voltage necessary to generate a spark. I replaced the distributor, no more misses. The ignition coils listed below are all Kohler OEM ignition coils Ignition coil conversion kit used on some CH740, CH750. Loosen the pick-up coil hold-down screw. One of the most common symptoms associated with a faulty ignition coil is engine performance issues. Check the secondary coil resistance between the primary ignition coil terminal and the spark plug cap. Either one of these windings can go bad and cause your ignition coil to fail. HO Distributor. On newer vehicles, a coil pack replaces the distributor. -Checked throttle position sensor. Coils vary in size and shape to meet the demands of different vehicles. Small gap, lower voltage. The symptoms of a bad ignition coil can include difficulty starting the engine, poor fuel economy,Check Engine Light and a rough idle. 010 inch and removed the wire going to the kill lead to assure it is not grounded someware or the oil sentry/neutral safety is grounding. What Are The Symptoms Of A Bad Distributor Cap Okay, we have a 1993 Nissan Hard body, manual transmission. If there's no spark, turn the ignition off and continue: 5.