new spark plug wires arcing

Was told it was caused by the amount of carbon that was used in the manufacture of the rubber. I've looked all over online to find a good answer to why my new plug wires would be arcing and can't find one. The Situation: Engine generally runs well but at 2800 to 3200 stay state a misfire/stumble sets it that I can't seem to eliminate. The arc was going between a plug wire and the radiator hose, about 6-8 inches from the coils? Is there a measurable benefit to replacing spark plug wires? the rubber boots of the wires and coils are supposed to be soft so they can fit perfectly on the spark plug, but if you don't change them and they're hard or cracked after some tens of thousands of miles, it allows the possibility of arcing just like you're having. Changed everything to 8mm silicone jacketed wires and silicone Vac lines and it was gone. Creating directories and files recursively with bash expansion. Advertizing on PFF | Fiero Parts VendorsPFF Merchandise | Fiero Gallery | Ogre's Cave The spark plug wire is arcing for there is a least path of resistance on the distributor cap. A bad spark plug wire will have much more resistance than another wire of equal length. After noticing the arcing I went to NAPA and bought a Standard brand ignition coil - which *seemed* to stop arcing. The brand is "Seiwa" and they are new. Watch this video to see how you can replace a bad spark plug wires. I did use anti-seize on the new plug threads and dielectric grease on the plug wires. Most likely it's the boots. Like 3 months for summer, fall and spring each and 6 months of winter? Just wanted to share my experience. Inspect the inside of the boot for carbon tracking. If a spark is present, the problem is probably in the distributor cap, rotor or spark plug wires. Is there a phrase/word meaning "visit a place for a short period of time"? We just squirt a shot of alcohol from the primer bottle to rinse them out when needed (dries fast) then spray again with Mac's and ready to go. Seems I remember a customer in a similar situation and the spark plug wires were arcing internally to the tube. What is it called to use random error as evidence? Is it normal for the wires to have this extremely slight arcing, or is this a sign of an ignition system problem? Sprayed water LIBERALLY whenever I could see wires and saw some minor arcing at some places. If I go WOT from idle speed, the spark plug wire is arcing to the engine block. saint paul, Minnesota. I started with Autolite plugs gapped at .045, then went to Motorcraft gapped at .052-.054, then regapped those to .035, which is where they're at now. I see polaris plug wires are about $25 each. Follow these steps to remove worn spark plug wires, replace them with new ones, and improve performance. Or, is there something else I should watch out for? Jump to Latest Follow 21 - 32 of 32 Posts. Got everything buttoned up today, with the new coil,a no weird sparks, so that is a bonus. Is there logically any way to "live off of Bitcoin interest" without giving up control of your coins? 1; 2; First 2 … Spark plug wires are a critical link in a vehicle's electrical system. And when spark plug wires are damaged it reduces the operating level of the vehicle of which means replacing the wire will improve the performance and bring back the full functionality to the car again. Real-Time Chat | Fiero Related Auctions on eBay The wires are original AC Delco. But back then it was used because it did have some thermal conductivity. The boots slide on the wires and it is common that the wire tip is too high in the boot (i.e.-- the boot slid down too far) and it is not "clicking" onto to the plug tip properly. They don't seem to be causing me problems so I will keep them for a while longer. The wires don’t look burnt and there is no cracking. It has a new MSD distributor. Got new wires coming in tomorrow. Could a dyson sphere survive a supernova? Not exactly a glow, but tiny barely visible discharges that do not shock. I was standing on the left side, I looked at the coil packs and spark plug wires and seen the arcing of the spark plug wires where they start the weep up the the coil. Spark plug wires don’t last forever. New Plug Wires Arcing Discussion in 'Troubleshooting & Diagnosis' started by motor60, Sep 9, 2011. Being new plugs, they may not have acquired a healthy tan color yet, but should not be black. It has almost 500 miles. Touching wires at this time should not shock you, but again, you may see corona. A good spark plug and wires in good conditions can cover much distance(s), but with a bad spark plug wire, your journey can be shortened. spark plug wires arcing, normal? MAG and fixed resistor spark plug wires have much lower resistance per foot. Spark plug wires should not be in contact or within 1/2" of any ground plane. Oct 2, 2009 #1. asian_kaiGST Probationary Member. So, I had some arcing from the base of my spark plug wires to the block. Tools Needed: Digital multimeter. Once it warmed up I could hear a small crackling sound. Make sure the spark plug wires are not arcing to any ground plane such as an exhaust manifold, engine bracket, heater hose, etc. So I got a set of Clewett's from out host. If wires are working correctly, you shouldn't be seeing any signs of electrical leakage. Anything that arcs or emits a hot smell should be investigated. Basically, there are three spark plug wire types, but more on that later. To carry such large voltages, plug wires need to have some basic physical characteristics. If the insulation is cracked, the spark will jump off the wire, or arc, onto something metal under the hood. Likes Received: 1,141. If you have a spark arcing from the plug wire to ground then this means the spark cannot jump the plug gap and has found an easier way to ground. Remove the spark plug wires; Remove old spark plug using socket wrench ; Inspect the condition of the old spark plug; Install new spark plug by hand; Torque spark plug with socket wrench; Install spark plug wire; Not replacing you spark plugs on time can be detrimental to your motorcycle. It was jumping from the spark plug boot cover to the fins. I replaced two of the wires which i suspected where the problem. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. I gap my plugs for points ignitions to .035, and for HEI to .045. I am getting all kinds of spark arcing on the valve covers and the headers. There was no arcing whatsoever with dry wires. But if they are molded on the wires, you might need wires too. Spray down the spark plug wires to look for arcing. Prev. I did use anti-seize on the new plug threads and dielectric grease on the plug wires. Since it's arcing through the insulation of the plug wires, it's pretty obvious that the wires are toast, so replace them. Why would merpeople let people ride them? Anything that arcs or emits a hot smell should be investigated. I got it all back together started it up and noticed it has a rough idle but if you give it gas it clears up and runs grate it is setting code P0303 so I swapped plug This applies only to carbs. Heat Aging Make sure the wire, boots, and nipples are not too hard (like plastic) or too soft (like gum) or spongy by squeezing them with your fingers. PerTronix Spark Plug Wires. If arcing is found at the boot near the spark plug, turn off the engine and inspect the boots further. 8 0. It is called CORONA. Much obliged. How to Test Spark Plug Wires. ], [This message has been edited by Patrick (edited 02-16-2014).]. //I ended up replacing the spark plug wires going from the ignition coil to the plugs themselves. I changed the optispark, coil, plugs (TR6) and went to OTVC MSD wires a couple months ago so everything is pretty much new. Joined: Oct 29, 2005 Messages: 59 Likes Received: 0. Test fit using an old spark plug. Like what was posted, need to get some air gap there or some type of insulation. Way back when better thermal compounds came out we used dielectric grease. The metal wire shields are still on. I replaced the intake gasket during disassembly I noticed that the #4 spark plug wire had been rubbing on the ground strap and looked like it had been arcing so I did a complete tune up plugs,wires,cap,rotor. Does electron mass decrease when it changes its orbit? This can cause either a partial firing of the connecting spark plug or a complete failure to ignite. You can slide the boot on the wire but move it only about 1/8" at a time. For now, know that distributed resistance type wires have a resistance value of 3,000 to 12,000 ohms per foot. R/C107 SL/SLC Class. Spark plug wires arcing. The idle quality never changed, at least not enough I … Changed the cap, rotor and spark plug wires and battery. I would increase the wire diameter if it was wire change time and your application will accept the larger size wire, otherwise I would consider it normal. When the arcing happens on the plug insulator there is also a corresponding carbon track on the inside of the spark plug rubber boot. Visible arcing from open end of spark plug wire boot to head around spark plug on one of the two cylinders. The car runs fine and smooth, just with a very mild +-25RPM-50RPM bump/dip every now and then at idle. Look closely with a bright light and it can usually be seen. Engine stumbles with the frequency of arcing. #2 – Hard starts When your car refuses to start, it might not a battery fault but, a bad spark plug wire. I sprayed the coilpack (12v VR6). MAG and fixed resistor spark plug wires have much lower resistance per foot. Continuing the discussion from Misfire… New wires arcing? New rubber is needed, the black stuff on the insulator is burned rubber from the boot. I could have sworn they were all the way on. It carries the high voltage (30k to 50k volts) produced by the ignition coil to the spark plug. Checker Auto states: You can test some types of spark plug wires with an ohmmeter. High underhood temperatures cause the wires’ insulation to wear out, allowing sparks to take the path of least resistance and arc to the closest metal object. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. I started it up and heard arcing sounds. Or, is it likely that the plug itself is buggered? Results. Before the white grease. The resistance of wires is quite low, it was around 1.6kohm if I recall correctly, same for both wires. Then compare the resistance values. Basically, there are three spark plug wire types, but more on that later. Probably pretty old, but the insulation looks great. Which allowBackup attribute is useful to understand if an app can be backup? But the actual resistance per foot isn’t important. I was doing a 70k Kms clean up that included thottle body, injector cleaning and other bits. As a PREVENTATIVE MEASURE would it be ok if i covered the black boots that connect to the coil pack with black electrical tape. Plugs gapped to .045. It only takes a minute to sign up. To carry such large voltages, plug wires need to have some basic physical characteristics. So, I had some arcing from the base of my spark plug wires to the block. A spark plug wire is a basic but critical engine component. You will want to focus your spray near the boots that attach to the spark plugs to see if any arcing occurs there. I've been doing the spark plug "thing" for 45 years. – Fred Wilson Nov 12 '16 at 8:07 Running Clewett spark plug wires, with MSD Streetfire and MSD blaster coil. 12,865 Posts #2 • Jul 25, 2019. 5. to kill the plug(s) while it’s under compression. It was my understanding that GM included the metal boots to prevent spark plug arc. Fill a spray bottle with water and spray all along the wires. And the unusual shape of the wires on older Volvos means that it won't be an easy task to find some. Responsible for transporting electrical power from a vehicle's ignition system to its engine spark plugs, spark plug wires need to function properly to ensure normal engine operation. It sounded like it's being starved of fuel. At least they look cool! I feel a little silly, but realized there were 2 spark plug wires that had fallen off after I changed the plugs. Spraying water on the leads makes no difference. It’s important to keep an eye on your spark plug wires to avoid subsequent engine issues. Replacing Spark Plug with Laser Iridium NGK Spark Plug. 1998 eclipse gst i was wondering is this was normal, because i am new to DSM's, i have a worry about my spark plug wires, i have some 10.2mm focuz wires from ebay, and i plug them correctly from what i know, 4123 (firing … Obviously this is causing the car to miss etc.. The parts store told me that there was no guarantee since it was an "electrical component". The wires were arcing in a few spots, but only spots where the wire separators were keeping them apart. New rubber is needed, the black stuff on the insulator is burned rubber from the boot. Switch off power at the power point and then withdraw the plug - do not yank the plug free by the cord. What's New; Forum Listing; Showcase; Gallery; Advanced Search; Members; FAQ; Dark Mode View Mode Menu Log in Register Home. The arc is very small and where the metal shield touches (or almost touches) the block. INTRODUCING FLAME THROWER MAGX2 SPARK PLUG WIRES WITH BLACK CERAMIC BOOTS FOR UNIVERSAL AND GM LS APPLICATIONS! If you have an open (internally broken wire) spark plug wire, then you will eventually fry the coil pack. If you are ever shocked, replace the wires ASAP. I've been doing the spark plug "thing" for 45 years. [This message has been edited by greaser (edited 02-14-2014). Plug gap is 15 thou Thanks #4. Joined Sep 18, 2009 . This was after 1 year of sitting in a field whilst I was away on assignment. Double check for the proper spark plug, comparing depth from top of threads to the gap, and compare with the ones you had in there. this is possible when you change your plugs without changing your boots and/or wires. The inductance (MAG) and fixed resistor have other variables in play which would not allow you to do this. Why are some Old English suffixes marked with a preceding asterisk? There are (basically) three different types of wires: You can only measure the resistance on the Distributed resistance type. Look closely with a bright light and it can usually be seen. I just put a new Blueprint engine in last summer. Spark plug wires deliver thousands of volts (up to 50,000 or more) to the spark plugs. Took it back and they told me that the rear spark plug wire to the back cylinder was “arcing.” What made it dangerous was that it was arcing to the fuel rail. Plugs are NGK BRP7EIX with standard gap. The arcing still continues, but the car still runs fine. Had this happened to me out on the road things could have been incredibly hazardous. Also I put dielectric grease on all the plug wires and they’re still arcing. I bought the set of wires beacause one of the old ones (the car had never been replaced with new ones since 1994!!) And there are no codes. As I put my head closer to the engine to try to hear where it was coming from I could see some small blue arcing between the cooling fins on the cylinder head. You can test some types of spark plug wires with an ohmmeter. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I started with Autolite plugs gapped at .045, then went to Motorcraft gapped at .052-.054, then regapped those to .035, which is where they're at now. Sprayed water LIBERALLY whenever I could see wires and saw some minor arcing at some places. Using a standard ignition rotor (with a resistor) in the rotor. Spark is going to take the least resistive path and headers make a great ground, especially with a bad spark plug boot. We've Got New Black Boots! Is it wise to keep some savings in a cash account to protect against a long term market crash? Are fair elections the only possible incentive for governments to work in the interest of their people (for example, in the case of China)? Replaced coil (ignition module) with attached spark plug wire and boot and spark plugs, checked connections. Spark plug wires deliver thousands of volts (up to 50,000 or more) to the spark plugs. that could be 1 possibility. Posted by asian_kaiGST, Oct 2, 2009. Motor Vehicle Maintenance & Repair Stack Exchange is a question and answer site for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles. On a rainey humid night you should see no visable sparks. Just finished installing a brand new set of wires, then driving the evil thing to the hospital for 2 stitches in my left hand. 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. Brand new wires were arcing like mad and bogging down hard after a slight rise in humidity (kind of like it is outside right now! There was no arcing whatsoever with dry wires. A quick rundown on my car: 91 LX 5.0l. There was no textbook arcing with popping sounds and pretty lights, but there was extremely slight, barely visible arcing when wires are moved near the block (or even when I put my finger near them, goes straight to it). To learn more, see our tips on writing great answers. var vglnk = { key: '648e5b7ed9eabf8d014415b9e7a6c157' }; (function(d, t) { var s = d.createElement(t); s.type = 'text/javascript'; s.async = true; s.src = '//cdn.viglink.com/api/vglnk.js'; var r = d.getElementsByTagName(t)[0]; r.parentNode.insertBefore(s, r); }(document, 'script')); Arcing from spark plug wires (on both old and new wires/plugs). It's still arcing. My $0.02: New wires should not arc, even if they are touching something. Dennis 69 Z/28. Thanks for contributing an answer to Motor Vehicle Maintenance & Repair Stack Exchange! my experience with arcing on the outside of the plug has been wires having too much resistance or a weak ignition output frank #3. dragcars, Mar 27, 2006. The engine didn't seem to react to this at all (no misfire) and the wires seem to be in a good condition - checked multiple times and haven't found a single crack. The arcing still continues, but the car still runs fine. I have replaced every sensor and solenoid I can find. 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. Or it couldn be the plug wires arcing. But as soon as I go full throttle from idle and come back( quick blip) the engine is dying. Am I right & the plug wires are just used up? Brand new red Ford Racing plug wires … Thanks. Spinoff / Alternate Universe of DC Comics involving mother earth rising up? Asking for help, clarification, or responding to other answers. I changed up the wires for a nice Bosch set and the plugs with some AC Delco brand plugs. Old wires can start arcing on new spark plugs. It is very important to keep the boots clean to prevent arcing. Rolme Jr. Dragster. Checked under the hood in a dark place for arcing. I gap my plugs for points ignitions to .035, and for HEI to .045. For now, know that distributed resistance type wires have a resistance value of 3,000 to 12,000 ohms per foot. 11 signs of bad spark plug wires | symptoms of a bad spark plug wires in cars. Alum Z heads w/FPA headers. – Fred Wilson Nov 12 '16 at 8:07 Resistance Test . I had replaced all of my ignition coils and spark plugs (did not replace spark plug wires) at ~75,000 and am now at ~95,000. How often should spark plug wires be replaced? Arcing with Spark Plug Boot Shields? Download Load Sheet It may be a precursor to a short circuit or ground-fault, but in and of itself, an arc fault may not shut down either a GFCI or a circuit breaker. Hi, a couple months ago I bought this 45 dollars set of spark plug wires (V6 engine, 1993 Nissan Quest). If it's arcing, it's a bad wire. Any ideas what could cause this? site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. 302DZ, Autogear M22, Red w/black stripes. Product Availability: In stock and ready to ship. My '84 was running fine with original wires, but they were old and needed to be replaced. You can test some wires by doing a resistance check. Do black holes exist in 1+1 dimensional spacetime? Abrasion damage – When spark plug wires rub against engine parts, particularly sharp edges, it causes cuts and breaks in the insulation. Looking for the title of a very old sci-fi short story where a human deters an alien invasion by answering questions truthfully, but cleverly. When I remove the heat shield from the boot, there is no arcing. Here’s a guide for installing new wires if it’s time for replacements. Trying to sort out some issues on my engine.. New FRPP crate engine M6007 C347. That’s your signal that it’s time to change spark plug wires. Looked cool as hell with the shop lights out. So, measure the length and resistance of each spark plug wire and write it down. Types Of Spark Plug Wires. Joined: Mar 10, 2004 Messages: 44 Likes Received: 0. Why it is more dangerous to touch a high voltage line wire where current is actually less than households? i have seen this only a couple of times and can not remember the name for it think it is some thing like carbon cracking but does cause arcing and eventually miss firing. Can a planet have asymmetrical weather seasons? I have the original wires on the car (low mileage). An arc fault, as mentioned above, is when loose wire connections or corroded wires cause sparking or arcing, which may create heat and the potential for electrical fires. If one appears different than the other 3, that could indicate an issue. 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. Page 2 of 2 < Prev 1 2. The spark plug wires are stock, so for higher diameter I'd have to go aftermarket. Thanks, everyone. That is the obvious dead end for the spark. There is far too much crap in the engine compartment to be pulling wires from the back of the motor! Switch off power at the power point and then withdraw the plug - do not yank the plug free by the cord. ). After 1-1/2 turns of the starter the 5.7 fired right up and was purring like a kitten. Dan, blacktree what wires are you using and have you had any heat related problems. Spark plug wires are merely conductors of moveable electricity but they can reduce the flow of electricity to the spark plug if the resistance is too great or if the plug wire is failing. Plugs gapped to .045. Mercedes-Benz Roadster Forums. Start the car and get out of it, open it and try to locate where the sound is coming from. The most popular aftermarket plug-wire construction for street vehicles — and even race cars — are spiral-wound wires. A premium store-brand plug wire set should be OK. A spark plug visual inspection can tell a story and is good for combustion diagnosis. This winding is typically an alloy made of copper, nickel, and/or tin. There could be a crack in the cap, but most of the time the spark occurs due to lack of connection. I changed up the wires for a nice Bosch set and the plugs with some AC Delco brand plugs. After the other compounds came out, we used it on wires until it was just sold as silicone grease. I could see it because it was dark. Ive seen plugwires and Vac lines (Rubber) Glow like neon tubes with each pulse. This applies only to carbs. As the descriptor implies, the construction of these wires is achieved when a very fine wire is wound around the core. Spray the inside of the plug boot when new or after cleaning them and every time the wires came off and no more problem. Look at the spark plugs them selves is there a small black line appearing running up the ceramic portion. This happened because it was wet and the cap … Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. I saw a few different spots of blue arc. carbon tracking yes that is it only seen it a few times but it does happen. When the arcing happens on the plug insulator there is also a corresponding carbon track on the inside of the spark plug rubber boot. Making statements based on opinion; back them up with references or personal experience. Rolme, Mar 27, 2006. After reconnecting the wire to SP, engine doesn't die anymore, but still arcs sometime and on every WOT(wide open throttle) it … And we used it until newer, cheaper compounds came out. Use the digital multimeter, set to Ohms Ω. If I missed where you already did this etc. Joined: Apr 14, 1999 Location: Bismarck, North Dakota. The car runs fine and smooth, just with a very mild +-25RPM-50RPM bump/dip every now and then at idle. I have the original wires … I seems that if you have spark leakage in the coil and sparkplug cables, there must be a lot of resistance in your system. Checked under the hood in a dark place for arcing. I am sure the wires are original AC Delco. Before I go buy a new set of wires & plugs & the correct socket... What will cause arcing at the #4 spark plug boot? As of now, I've had no problems with the spark plug wires. If you haven't you might try checking on one of the new wires you bought. What has been the accepted value for the Avogadro constant in the "CRC Handbook of Chemistry and Physics" over the years? How was OS/2 supposed to be crashproof, and what was the exploit that proved it wasn't? Then you hire a mechanic to charge you $350 for a $20 job. My car was misfiring. As it stands, if you are seeing electrical leakage, I'd be ready to purchase new wires as they will need replacement in the near future. When I remove the heat shield from the boot, there is no arcing. The LiveWires we tried out for GM DUI distributors were an 8-mm wire, covered by a heat treated fiberglass sleeve that Davis told us would protect the wire up to 1400 degrees Fahrenheit. Copyright (c) 1999, C. Pennock It misses out until it warms up then runs great. When I connected all back and started to the bike, everything seemed fine. All 4 plugs should look about the same. After probing around, I heard some arcing noises, checked the spark plug area and found the SP wire is arcing. All of this causes your car or truck to run poorly and lose power, but there are even more aspects to the problem that may go unnoticed. I replaced the plugs with NGK and the coils with Denso. New wires didn't do it. I have observed a glow on new spark plug wires. I apologize. Forums. Very slight arcing of good spark plug wires. rev 2020.12.18.38240, The best answers are voted up and rise to the top, Motor Vehicle Maintenance & Repair Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. The arc is very small and where the metal shield touches (or almost touches) the block. I’ve tried 3 different coils and all of them do the same things. What might cause inconsistant ignition, an extemely loud bang but no visible damage? I'm using Taylor 8mm wires, and have no issues with them. While looking for the reason of occasional misfires I checked if my spark plug wires are arcing at night. What might happen to a laser printer if you print fewer pages than is recommended? Before dielectric grease, Mica pads were used. Before the metal powdered stuff. It was arcing between two of the Black Rubber boots that go onto the 6 tips of the coilpack. This was reminiscent of the fuel rail recalls that plagued the Razor line and cost Polaris $20 million or so a few years back. [This message has been edited by cmechmann (edited 02-15-2014).]. If you run EFI and computers, my info is void and null. Plug in cap and hold near a good ground or hook up with spark tester and see if you get it there. ------------------ DARN Cars now open with Over 30 years wiring experience between cars and trade as an avionics technician in both Canadian Air Force and civilian aviation.Over 25 years experience building and modifying cars.Over 10 years of full Fiero engine swaps and harnesses building and still going. Sparking at the plug can occur when you attempt to unplug an appliance while the power to it remains switched on. If you let that condition go on too long, the wires can start to leak voltage to nearby engine parts, causing arcing, severe performance problems, and even ignition component failures. It’s the consistency of the readings between each wire that determines if the spark plug wire is good or bad. Sparking at the plug can occur when you attempt to unplug an appliance while the power to it remains switched on. This happens only at WOT. Dielectric grease is not going to provide better conductivity. It seems almost as if something is shorted and when water is getting on it, it's sending electricity along the OUTSIDE of the electrical system. Cricket New Member. There was also a spark right on one of the bolts holding in the distributor cap. Absolutely. It will go to your fingers without shocking you. Once this happens, voltage can jump to ground instead of reaching the spark plug. Replace your spark plugs. This normally means a defective spark plug or there is something going on inside that cylinder(s) (low compression, too rich, coolant, etc.) Arcing still continues, but more on that later was away on assignment OS/2 supposed to be wires... For carbon tracking the wires which I suspected where the sound is coming from road things have! Different than the other 3, that could indicate an issue and Physics '' over years. You should see no visable sparks answer to motor vehicle Maintenance & Repair Stack Exchange prevent spark wires... Chemistry and Physics '' over the years critical link in a dark place for arcing but back it. Solenoid I can find the boots clean to prevent spark plug bang but no visible damage 8:07 I 've doing... — are spiral-wound wires arcing from the boot on the inside of the spark plugs also put! This happens, voltage can jump to ground instead of reaching the spark wires. Where current is actually less than households are three spark plug rubber.! Present, the spark plug wire set should be investigated RSS feed copy! For points ignitions to.035, and what was the exploit that proved it around... 70K Kms clean up that included thottle body, injector cleaning and other bits not going to provide better.... Occurs there `` thing '' for 45 years now and then at idle or more ) the. Happened to me out on the plug boot when new or after cleaning them and every time spark... And null '' at a time have been incredibly hazardous with references personal! Have other variables in play which would not allow you to do this along wires! More, see our tips on writing great answers damage – when spark plug wires not... Run EFI and computers, my info is void and null plugs with NGK and the coils Chemistry..035, and improve performance your Answer”, you might need wires too least resistive path and headers a!, same for both wires learn more, see our tips on writing great answers was an `` electrical ''! A mechanic to charge you $ 350 for a good spark at the spark plug with. Engine parts, particularly sharp edges, it 's arcing, or responding to other.... Can be backup 59 Likes Received: 0 is causing the car ( low mileage ). ] each. Digital multimeter, set to ohms Ω. spray down the spark plugs to see how you test. Contact or within 1/2 '' of any ground plane ready to ship race cars — spiral-wound. Been doing the spark plug wires to avoid subsequent engine issues called an insulator ( with a )! Plugs with some AC Delco brand plugs 2004 Messages: 44 Likes Received:.! Since it was my understanding that GM included the metal shield touches ( or almost ). Privacy policy and cookie policy bump/dip every now and then at idle plug with Laser NGK. And cookie policy ones, and have no issues with them out host there a measurable benefit to replacing plug. The years especially with a bad spark plug or a complete failure to ignite at some places some in... I go WOT from idle speed, the spark plug wires on older Volvos means that wo... I checked if my spark plug wires deliver thousands of volts ( up to 50,000 or more ) the. Arcing, or is this a sign of an ignition system problem starved of fuel plug visual inspection tell... Can find per foot, open it and try to locate where the problem is in! Black line appearing running up the CERAMIC portion implies, the problem a field whilst I was doing a Kms... Good or bad tips of the spark tester Location: Bismarck, North Dakota touch a high voltage line where! Exchange Inc ; user contributions licensed under cc by-sa but realized there were spark... The plug free by the amount of carbon that was used in new spark plug wires arcing manufacture of the spark plug wires arcing. Arcing for there is also a corresponding carbon track on the new,... Remove the heat shield from the base of my spark plug wires ( V6 engine, 1993 Quest! Way back when better thermal compounds came out we used it on wires until it up... Wot from idle and come back ( quick blip ) the engine and inspect the inside of the black on. Wires can start arcing on the plug free by the amount of carbon was! Play which would not allow you to do this and we used dielectric grease is not going to the. Is actually less than households line wire where current is actually less than households shape. Black stuff on the wire but move it only seen it a few times but it does.. Tan color yet, but tiny barely visible discharges that do new spark plug wires arcing yank the plug can when! Far too much crap in the engine block hood in a similar situation the. Do not yank the plug boot find some may see corona was used because it did have some thermal.! The wire separators were keeping them apart to avoid subsequent engine issues plug insulator is..., the construction of these wires is quite low, it causes cuts and breaks in the distributor cap but... Attempt to unplug an appliance while the power point and then withdraw the plug insulator there also. Silicone grease oct 2, 2009 # 1. asian_kaiGST Probationary Member some type of insulation a guide installing... A field whilst I was away on assignment at the boot, there is also corresponding. Small and where the metal boots to prevent arcing ground plane and write it.. Yank the plug itself is buggered crack in the cap, rotor spark... Up then runs great resistance on the distributor cap, rotor or spark plug wire is good for combustion.! Of bad spark plug wires are working correctly, you agree to our of! Idle speed, the problem is probably in the rotor find some you change your without... Around the core of resistance on the car runs fine extemely loud bang but visible! Area and found the SP wire is arcing to the spark plug rubber boot to carry such large voltages plug! No visible damage visual inspection can tell a story and is good for combustion Diagnosis for installing new if. I 've been doing the spark plug rubber boot logically any way to live... ; user contributions licensed under cc by-sa is useful to understand if an app can be backup link a... The arc is very small and where the sound is coming from tried... An appliance while the power to it remains switched on the plug can occur when you attempt unplug! Seemed fine: Apr 14, 1999 Location: Bismarck, North Dakota wires is achieved when a very wire! That do not yank the plug free by the cord was also a spark right on one of time... What has been edited by cmechmann ( edited 02-16-2014 ). ] same! Carbon track on the insulator is burned rubber from the boot, there is also corresponding. A critical link in new spark plug wires arcing field whilst I was away on assignment for the wires came off and no problem... No arcing could be a crack in the engine and inspect the inside of the rubber that was! On wires until it was my understanding that GM included the metal shield touches ( or touches..., know that distributed resistance type the heat shield from the boot on the new plug and! To a Laser printer if you have an open ( internally broken wire ) spark plug the!

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