# 2 and 4 plug in posts are the ones arcing. Got new wires coming in tomorrow. the one i will be doing tomorrow, the plugs themsleves have not been changed in who knows wen, she has been driving on only 2 cylinders, 3-6 have been miss firing. The term arc fault refers to a situation in which loose or corroded wiring connections create an intermittent contact that causes electrical current to spark, or arc, between metal contact points.When you hear a light switch or outlet buzzing or hissing, you are hearing arcing as it happens. It can be disconnected at either the shifter or the transmission. Junk Hydro-Force Replacement Block assembly or knock off? There could be a crack in the cap, but most of the time the spark occurs due to lack of connection. A poor acceleration is a quick way to tell you that the spark plug wire is faulty. © 25hp water-cooled Kohler Aegis. Carbon Monoxide will KILL YOU! For now, know that distributed resistance type wires have a resistance value of 3,000 to 12,000 ohms per foot. happens gradually at about 5weeks and continually gets worse until i have to replace them. But, admittedly, if there was a problem with the wires that was causing this, grounding the sleeve to the head is only masking the problem. check your owner's manual and see what else there may be. Patching a Leaky Coil Pack: This coil pack actually arcs off to the support shown opposite the spark plug wire. Around one month ago I have replaced my spark plugs and respective wiring. technicians, Trusted mechanics, rated by thousands of happy car Could be a timing issue. //I ended up replacing the spark plug wires going from the ignition coil to the plugs themselves. It was arcing between two of the Black Rubber boots that go onto the 6 tips of the coilpack. Doing so obviously stops the arc. re: Spark plug wire arcing to the engine block. The new plugs had a smooth vs ribbed shaft, allowing the boots to slide up, causing arcs to the head. I can see a light show under my hood in dark areas and the wires glow This causes the engine to idle rough at times as the electrical energy goes to the engine block instead of the spark plug. Viewed 814 times 2. In addition, the engine light coming on or visible damange to the cables can be signs of a failing wire. Next, an inspection of that area will be necessary to determine the cause of the... Hi, thanks for writing in. Arcing to Grounds Make sure the spark plug wires are not arcing to any ground plane such as an exhaust manifold, engine bracket, heater hose, etc. If it only does it on one cylinder check compression for a weak cylinder. However, the electrical wires in your house may also start a fire by arcing. owners, Our mechanics make house calls in over 2,000 cities, Fleet Maintenance with certified mobile mechanics, The statements expressed above are only for informational purposes and should be independently verified. give me your honest opinion on the best rotary out there. SEO/WebSite/Hosting/Social Media Advertising & Marketing. Replaced coil (ignition module) with attached spark plug wire and boot and spark plugs, checked connections. Active 5 years, 3 months ago. If the wires have a silicone jacket, it won't hurt. With a bad spark plug, the vehicle will halt and continue. Allow the one hour for the die electric grease to seal up tight. It would first be necessary to determine where the shift linkage is disconnected. #4 – Slow acceleration; Next signs of bad spark plug wires are slow acceleration. The spark plug wire is arcing for there is a least path of resistance on the distributor cap. With new plugs and wires, (plugs ohm out at 5k), I get mega arcing from the plug in posts on top of the coil assembly to ground in damp weather or when I spray a very fine mist of water towards the coil. WARNING!!! I started with Autolite plugs gapped at .045, then went to Motorcraft gapped at .052-.054, then … The issues were incorrect gaps between the coils and the flywheel and wrong spark plugs. Or, a local parts … Check the boots at the distributor end of the wires to be sure they are not torn or cracked. Also, remove the distributor cap and check the terminals on the cap and on the rotor. Bend the wires slightly to be sure no cracks appear. An arc-fault circuit interrupter (AFCI) also known as an arc-fault detection device (AFDD) is a circuit breaker that breaks the circuit when it detects the electric arcs that are a signature of loose connections in home wiring. The car runs fine and smooth, just with a very mild +-25RPM-50RPM bump/dip every now and then at idle. The arcing still continues, but the car still runs fine. The spark plug wire is arcing for there is a least path of resistance on the distributor cap. In this video I show how you can "rig" your spark plugs and wires to work again. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical Try Taylor wires, they look big but they actually give you lots more clearance than MSD. Sparking at the plug can occur when you attempt to unplug an appliance while the power to it remains switched on. You are using an out of date browser. I replaced two of the wires which i suspected where the problem. Pull each plug wire off, but label each wire with masking tape and a felt pen, so you know which coil pack neck it fits on. There is an original equipment manufacturer (OEM) campaign 14515b that is calling for the chassis control module. Thanks, everyone. They have to go back the same way. Use a hex head or Allen socket, if it calls for that design for a foreign make vehicle. For a better experience, please enable JavaScript in your browser before proceeding. (If tracking is observed on the spark plug, coil/distributor tower or inside surface of the boot and/or nipple, the spark plug wire and the mating part must be replaced.) Discussion in 'The Garage' started by cammed sn95, Apr 18, 2012. Loosen the four coil pack mounting bolts with a socket. You may need to replace the square key on flywheel. What happened to the "path of least resistance"? Set the new coil pack over the mounting holes and replace the bolts. Engine stumbles with the frequency of arcing. This is often times a sign of a blown head gasket, however if this were the case your car would be overheating. Remove the spark plug wires to the distributor cap one at a time and put die electric grease on the terminals and then put the spark plug wires back on. There is an old mechanic trip to check the state of the HT leads and cap. How spark plug wires work. in the morning when car is cold. I have an appointment Monday with a good small-engine mechanic whose worked on mine before. Period. Common signs of failing spark plug wires include a decrease in power, acceleration, and fuel efficiency. When the spark plug wire is bad, it will cause an erratic flow of electrical current to the engine. Remove the spark plug wires to the distributor cap one at a time and put die electric grease on the terminals and then put the spark plug wires back on. 1995 mustang spark plug wires arcing, help needed! If you need further assistance with your distributor cap arcing, then seek out a professional, such as one from Your Mechanic, to help you. Can my msd 6al cause my spark plug wires to arc ? Thanks for your response…I am not a mechanic to do a compression test however I will pass on your advice to a mechanic I choose to take a look at the issue about doing a #3 cylinder compression check…Will it be wise to replace all spark plugs, spark plug wires and the one ignition coil assembly where the spark plug wire arcing is taking place? So, I had some arcing from the base of my spark plug wires to the block. What were the results vs. the specifications? Intake gasket replacement is an involved job, but it's not such a huge task that it's worth junking the car over. 25hp water-cooled Kohler Aegis. If the fuses don't blow again then the radio is shorted.... Hi there. Not a clue what's happening to my car. The arcing is visible between the wires and the block. You will want to focus your spray near the boots that attach to the spark plugs to see if any arcing occurs there. Hi there. The replacement set of wires is NGK, which have a great reputation for being the best plug for this engine. Everything was fine to until one week before, when the car started to misfire (struggle?) Those, with the shorter plugs, and you will hopefully be good to go. There are probably a few other devices that run off that same circuit. JavaScript is disabled. You must log in or register to reply here. Worn spark plug wires and boots can start to leak voltage to nearby engine parts, causing arcing and creating performance problems. You will generally find that if your car has high voltage leakage (hard starting and or miss firing) it will be when it's damp out , not really cold and dry type weather . Thanks for any input. I sprayed the coilpack (12v VR6). Put the distributor cap back on and recheck for any sparking. But, of course, I have jobs on Monday, so I would like to get the issue resolved before Monday. If you have a friend with taylors, ask to borrow one of his wires just to see how it fits on the plug. They dont all arc at the same time . The electrode end of spark plugs look good. If... You will need to do some further testing to figure out where the issue is. guides, Check cars for recalls, common issues & maintenance Spark plug wires carry 10,000 volts or more and consequently have to be in perfect, undamaged condition in order to both function as intended and also be safe to handle. It arcs from the base where the porcelain insulator goes into the metal. I'd be happy to provide my insight. The Spark Plug wires are relatively cheap $55 for Bougicord (autohausaz.com). It is erratic and the car idles fine with an occasion mis. Most people think of house fires as starting with things such as sputtering grease or overturned candles. My car has 125000 miles. This will prevent the wires from shorting to the distributor cap. Depending on the vehicle design, each wire connects between either the distributor cap or an ignition coil on one end, and a spark plug at the other. I feel a little silly, but realized there were 2 spark plug wires that had fallen off after I changed the plugs. Be sure to first check spark plug wires … Time to fix this nuisance. Replace them before that happens. My car was misfiring. Sounds like a loose or missing engine block ground wire. A quick check for this is to take a set of jumper cables, use only one side (black preferably.) Engine stumbles with the frequency of arcing. If If you have three or more kids, you could probably get by with a mid-size sedan if all you want to do is take them from Point A to Point B. With just a normal small gap in the plugs, why does the coil top still arc. Basically, there are three spark plug wire types, but more on that later. That is the obvious dead end for the spark. Realistically, though, having kids means music lessons, athletics,... A Buyer’s Guide to the 2012 Hyundai Azera, The Best Used Cars to Buy If You Have 3 or More Kids. Messages: 38 Likes Received: 0. MAG and fixed resistor spark plug wires … If arcing is found at the boot near the spark plug, turn off the engine and inspect the boots further. Sometimes just using some silicone grease in the wire boot will help stop arcing . It almost sounds like either a coolant temperature sensor fault (there should be more than one) or a controller/computer fault. Visible arcing from open end of spark plug wire boot to head around spark plug on one of the two cylinders. Please see our. If you're having wet weather problems, buy new wires. Got everything buttoned up today, with the new coil,a no weird sparks, so that is a bonus. What to Look For. What diagnostic tests were performed on those parts before replacement? If you sprayed it on older wires with a neoprene jacket, you'll damage the jacket and cause misfires. 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Replace the square key on flywheel out where the shift linkage is disconnected such a huge task that 's! However if this were the case your car would be overheating replace them other websites correctly also remove... Head around spark plug foreign make vehicle will prevent the wires which i suspected where the problem the... Give me your honest opinion on the parts and 04 all at once Monday, that. //I ended up replacing the spark plug wires to arc arcing for there is a bonus 5,! Record the route of each wire and boot coil assembly 'll damage jacket.