The arcing is visible between the wires and the block. 1995 mustang spark plug wires arcing, help needed! This is going to require you trace the power supply from the brake pedal to the bulb. I replaced two of the wires which i suspected where the problem. If it only does it on one cylinder check compression for a weak cylinder. Joined: Feb 20, 2012. costs, Hand-picked, community-rated professionals, Explore nationwide job opportunities for automotive Why doesn't the plug fire instead, or is 5k ohms on a plug enough to make coil charge seek a easier path. You should have the radio display removed and then install the fuses again to check if they will blow again. There is NO reason to ever spray anything on spark plug wires. Loose connections, which can develop over time, can sometimes become hot enough to ignite house fires. //I ended up replacing the spark plug wires going from the ignition coil to the plugs themselves. 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 . Please see our. Converting Sole Proprietorship to LLC, & S-Corp. 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. My car was misfiring. The issues were incorrect gaps between the coils and the flywheel and wrong spark plugs. For a better experience, please enable JavaScript in your browser before proceeding. If you have a friend with taylors, ask to borrow one of his wires just to see how it fits on the plug. There could be a crack in the cap, but most of the time the spark occurs due to lack of connection. Doing so obviously stops the arc. There are probably a few other devices that run off that same circuit. The spark plug wire is arcing for there is a least path of resistance on the distributor cap. This video was inspired by a video off of the old Davidsfarm channel. Visible arcing from open end of spark plug wire boot to head around spark plug on one of the two cylinders. Period. The The Azera offers an overall good value for the class and price point. Could be a timing issue. When the spark plug wire is bad, it will cause an erratic flow of electrical current to the engine. If... You will need to do some further testing to figure out where the issue is. Everything was fine to until one week before, when the car started to misfire (struggle?) I can see a light show under my hood in dark areas and the wires glow But, of course, I have jobs on Monday, so I would like to get the issue resolved before Monday. If arcing is found at the boot near the spark plug, turn off the engine and inspect the boots further. Replace them before that happens. 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. Worn spark plug wires and boots can start to leak voltage to nearby engine parts, causing arcing and creating performance problems. If you're having wet weather problems, buy new wires. 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. in the morning when car is cold. It arcs from the base where the porcelain insulator goes into the metal. Just want to make sure I'm not missing something before I get a new coil assembly. Much obliged. © If you would like to schedule replacement of the spark plug wires, a certified Mechanic from YourMechanic can do that during a mobile visit to your home or office. Loosen the four coil pack mounting bolts with a socket. The first thing the mechanics did after finding the arcing was to put electrical tape around the wires where the arcing was occuring, which was where the rubber goes into the plastic housing that goes over the spark plug. Check the boots at the distributor end of the wires to be sure they are not torn or cracked. 25hp water-cooled Kohler Aegis. What diagnostic tests were performed on those parts before replacement? Around one month ago I have replaced my spark plugs and respective wiring. Messages: 38 Likes Received: 0. The module has a problem that it has corrosion internally causing random check engine lights and possible engine stall or fail to start.... Hello, thanks for writing in about your Ford Expedition. Let the engine run and spray, carefully, with a plant sprayer fine mist on the leads and caps. While most say to push the metal sleeve up the boot, I'm wondering if it is designed for the opposite -- to be pushed down into the head hole. # 2 and 4 plug in posts are the ones arcing. Discussion in 'The Garage' started by cammed sn95, Apr 18, 2012. The Spark Plug wires are relatively cheap $55 for Bougicord (autohausaz.com). I have an appointment Monday with a good small-engine mechanic whose worked on mine before. SEO/WebSite/Hosting/Social Media Advertising & Marketing. The spark plug wire is arcing for there is a least path of resistance on the distributor cap. There are a few possibilities; you either have a problem with the hydraulics, a mechanical problem with the clutch, or a transmission fluid leak. It calls for 4.6 hours of labor. It was arcing between two of the Black Rubber boots that go onto the 6 tips of the coilpack. I have replaced all plug wires. A poor acceleration is a quick way to tell you that the spark plug wire is faulty. This is often times a sign of a blown head gasket, however if this were the case your car would be overheating. With a bad spark plug, the vehicle will halt and continue. However, the electrical wires in your house may also start a fire by arcing. Also, remove the distributor cap and check the terminals on the cap and on the rotor. Switch off power at the power point and then withdraw the plug - do not yank the plug free by the cord. give me your honest opinion on the best rotary out there. In this video I show how you can "rig" your spark plugs and wires to work again. You must log in or register to reply here. Put the distributor cap back on and recheck for any sparking. Spark plug wires arcing when car is cold. I changed up the wires for a nice Bosch set and the plugs with some AC Delco brand plugs. My car has 125000 miles. Spark plug wires deliver high voltage to the spark plugs, which then ignite the air-fuel mixture in the engine’s cylinders. Use sand paper to clean up the corrosion that is present on the parts. If you need further assistance with your distributor cap arcing, then seek out a professional, such as one from Your Mechanic, to help you. That is the obvious dead end for the spark. If the sparking continues, then either the cap has a crack on it or the terminals have too much corrosion causing an arc. You are using an out of date browser. 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. Patching a Leaky Coil Pack: This coil pack actually arcs off to the support shown opposite the spark plug wire. Bend the wires slightly to be sure no cracks appear. WD-40 is a lubricating oil. Good job you had the cap replaced. If the fuses don't blow again then the radio is shorted.... Hi there. I feel a little silly, but realized there were 2 spark plug wires that had fallen off after I changed the plugs. There could be a crack in the cap, but most of the time the spark occurs due to lack of connection. 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? Sparking at the plug can occur when you attempt to unplug an appliance while the power to it remains switched on. The arcs are about 1/2" long from bottom of wire boots to ground. Fill a spray bottle with water and spray all along the wires. Sometimes just using some silicone grease in the wire boot will help stop arcing . There is an old mechanic trip to check the state of the HT leads and cap. Common signs of failing spark plug wires include a decrease in power, acceleration, and fuel efficiency. Carbon Monoxide will KILL YOU! Any ideas what could cause this? 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. document.write(new Date().getFullYear()) Try Taylor wires, they look big but they actually give you lots more clearance than MSD. Basically, there are three spark plug wire types, but more on that later. Those, with the shorter plugs, and you will hopefully be good to go. 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. Intake gasket replacement is an involved job, but it's not such a huge task that it's worth junking the car over. MAG and fixed resistor spark plug wires … It almost sounds like either a coolant temperature sensor fault (there should be more than one) or a controller/computer fault. The electrode end of spark plugs look good. Visible arcing from open end of spark plug wire boot to head around spark plug on one of the two cylinders. guides, Check cars for recalls, common issues & maintenance This causes the engine to idle rough at times as the electrical energy goes to the engine block instead of the spark plug. With just a normal small gap in the plugs, why does the coil top still arc. How spark plug wires work. ....but it certainly won't help. Time to fix this nuisance. re: Spark plug wire arcing to the engine block. Got everything buttoned up today, with the new coil,a no weird sparks, so that is a bonus. Can my msd 6al cause my spark plug wires to arc ? So, I had some arcing from the base of my spark plug wires to the block. Use your camera to record the route of each wire and spark plug. There is an original equipment manufacturer (OEM) campaign 14515b that is calling for the chassis control module. 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. Or, a local parts … 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. They have to go back the same way. It may not display this or other websites correctly. 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 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.) I sprayed the coilpack (12v VR6). 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. For now, know that distributed resistance type wires have a resistance value of 3,000 to 12,000 ohms per foot. They dont all arc at the same time . Since all this arcing has destroyed all these wires, I got the Pep Boy's lifetime set so I can exchange em a million times as they keep destroying themselves by arcing. I started with Autolite plugs gapped at .045, then went to Motorcraft gapped at .052-.054, then … Most people think of house fires as starting with things such as sputtering grease or overturned candles. Both old and new doing the same. My car has an automatic transmission. I could have sworn they were all the way on. In addition, the engine light coming on or visible damange to the cables can be signs of a failing wire. Replaced coil (ignition module) with attached spark plug wire and boot and spark plugs, checked connections. It is erratic and the car idles fine with an occasion mis. WARNING!!! Viewed 814 times 2. It would first be necessary to determine where the shift linkage is disconnected. What happened to the "path of least resistance"? Thanks, everyone. The car runs fine and smooth, just with a very mild +-25RPM-50RPM bump/dip every now and then at idle. The new plugs had a smooth vs ribbed shaft, allowing the boots to slide up, causing arcs to the head. Set the new coil pack over the mounting holes and replace the bolts. A quick check for this is to take a set of jumper cables, use only one side (black preferably.) Got new wires coming in tomorrow. I saw a few different spots of blue arc. Replaced coil (ignition module) with attached spark plug wire and boot and spark plugs, checked connections. The replacement set of wires is NGK, which have a great reputation for being the best plug for this engine. YourMechanic All rights reserved. Finally, check the wires at the spark plug end one at a time by pulling it off the plug and inspecting the end for any tears or cracks. 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. happens gradually at about 5weeks and continually gets worse until i have to replace them. If the wires have a silicone jacket, it won't hurt. Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing. As a PREVENTATIVE MEASURE would it be ok if i covered the black boots that connect to the coil pack with black electrical tape. Also look to be sure there is no burning or darkening of the end. Ask Question Asked 5 years, 3 months ago. 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. Be sure to first check spark plug wires … I'd be happy to provide my insight. Engine stumbles with the frequency of arcing. Thanks for the replies. If you see sparking you know these need replacing. Apr 18, 2012 #1. cammed sn95 New Member. You will want to focus your spray near the boots that attach to the spark plugs to see if any arcing occurs there. What were the results vs. the specifications? technicians, Trusted mechanics, rated by thousands of happy car 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. Cannot see a crack even with a magnifying glass at plug in posts on coil assembly. Which one of you lucky rug suckers landed this Account? Hi there. Spark plugs yes, i have done plenty of plugs and wires on all types of cars and trucks. What to Look For. Thanks for any input. 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 The sleek styling is hard to overlook – for a large sedan it’s about as eye-catching as they get. Thanks for all your replies. Active 5 years, 3 months ago. Not a clue what's happening to my car. JavaScript is disabled. I replaced the coil with integral plug wire and boot. Use a hex head or Allen socket, if it calls for that design for a foreign make vehicle. Next, an inspection of that area will be necessary to determine the cause of the... Hi, thanks for writing in. 25hp water-cooled Kohler Aegis. The arcing still continues, but the car still runs fine. You may need to replace the square key on flywheel. This will prevent the wires from shorting to the distributor cap. This can be normal - it’s an ‘inductive kickback’ which you might see with a vacuum cleaner or other appliance with a motor. The codes came up Po300, 02, and 04 all at once. Sounds like a loose or missing engine block ground wire. If you sprayed it on older wires with a neoprene jacket, you'll damage the jacket and cause misfires. 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. It can be disconnected at either the shifter or the transmission. You can test some types of spark plug wires with an ohmmeter. Made with ♥ in Silicon Valley. If the fuse blows without you blowing the horn, then it is probably not the horn... Hello. Without operational spark plugs, your engine won’t run. Arcing occurs when there is a break in an electrical circuit, causing the current to jump across the gap, producing sparks and high heat. #4 – Slow acceleration; Next signs of bad spark plug wires are slow acceleration. Engine stumbles with the frequency of arcing. Allow the one hour for the die electric grease to seal up tight. check your owner's manual and see what else there may be. Junk Hydro-Force Replacement Block assembly or knock off?