The wipre assembly comes off very easily and then you can just reach back over the plenum and reach the plugs/wires. They are usually quite audible. JavaScript is disabled. Just make sure you push them over the boot all the way down to the head. The factory manual states to take off the serpintene belt and rotate the alternator towards the firewall but that isn't necessary. and there was in fact a concentrated blast of fire being blown on the boot! Two weeks later started to misfire again. i am going to order spark plug wires today. The reason wires will arc like that is because electricity always follows the path of least resistance. First, my truck started to run rough and misfire. The electrical circuit breaks at the point where the metal contact of the wire is connected to the conductive housing and other components of the ignition system, for example: 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-. Usually that's to the plug but if for some reason the plug is bad or the ignition system is unstable then the electricity will find an easier path whether it be to another wire, a header, or the head. I had one ford racing wire shorting, I couldn't tell till I grabbed the top of the distributor. A spark plug wire is a basic but critical engine component. I see polaris plug wires are about $25 each. Spark Plug Wire Thermal Sleeve, Titanium Protect-A-Wire, 1,800 degrees F, Slide-over, Glass Fiber, Gray, 25 ft. lol But one wire is arcing on a header and the other looks like it's arcing to the block or the metal part you put the wrench on to tighten or loosen the plug with. You must log in or register to reply here. If that looks okay I would buy some thermal protection sleeves to provide extra heat and/or contact protection for the wires. i tried wrapping the boot in a piece of leather that i cut off a welding bib. Estimated Ship Date: Tomorrow if shipped by air. Spark plug wires wear out internally because this high voltage burns them out, and they deteriorate externally due to … For a better experience, please enable JavaScript in your browser before proceeding. could this cause my car to break up past 5k rpm? A boot may help a little bit, but you're better off getting creative with plug wire looms and zip ties to hold it out of the way. Normal driving and idle is unaffected. It carries the high voltage (30k to 50k volts) produced by the ignition coil to the spark plug. Is there a possible reason/problem with the engine causing this to keep happening? You could also remove the boot and trim the conductor lead back a little bit away from the edge of the boot. I know.. not a stang, but the ranger station boys are slow to reply and haven't had a clue what the prob is so far, and the 94 - 95 guys here are basically awsome!!! Headers suck How to make room for your spark plugs if they hit the primary tubes of your headers. There could be a crack in the cap, but most of the time the spark occurs due to lack of connection. For a better experience, please enable JavaScript in your browser before proceeding. After reconnecting the wire to SP, engine doesn't die anymore, but still arcs sometime and on every WOT(wide open throttle) it … I started it up and heard arcing sounds. When the spark plug wire is bad, it will cause an erratic flow of electrical current to the engine. the headers are bbk shortys. I shortened the wires and fixed the problem. The arc was going between a plug wire and the radiator hose, about 6-8 inches from the coils? it worked great for me. The wires were old so i just replaced the spark plug wires. guess ill order some of those covers. the headers are bbk shortys. you can mist the wires/plugs with water in dark condition and look for arc. This time I replaced all of the spark plugs and plug wires. The center wire got stuck on the end of the boot when the wires were put together. 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? i still see the charge going from header to the boot. I ran those boots laying right on the headers with no problem. JavaScript is disabled. I don't know much about the Duraspark wires. which would clear better? I know right wtf MSD! Yes, that's exactly why it's breaking up. I had the same problem. i already ordered the ford racing 9mm wires too. Replace the wire, then wrap it. i just noticed that the rear most spark plug boot on the passenger side is arching out to my header. They're 8 mm NAPA wires and ACR45 plugs. Within Mazda and Probe owners, these are regarded as the best option. Protect Your Spark Plug Boots. Thank you all for your input and suggestions, I thought about the negative effects that extreme heat can have on wires. It's arcing because it has burned through already. I saw lightning jumping through the #5 plug boot to the header. Engine stumbles with the frequency of arcing. i ddidnt actually put it on the headers themselves but just on the boot of the spark plug wire that was burning. 1995 Ford Mustang 3.8L V6 - Electrical Issues - Need Help. The faults are an electrical failure and current leakage. Well, I ordered some new Ford Motorsport spark plug wires off of amazon. It quickly got worse. Check here for special coupons and promotions. MAG and fixed resistor spark plug wires … this includes looking from underneath the car while it is running. Taylor Cable 79614 409 Spiro-Pro 10.4mm Ignition Wire Set Blue For Vehicles w/LS Truck Headers 11.75 in. #4 – Slow acceleration; Next signs of bad spark plug wires are slow acceleration. Part Number: DEI-010603. Spark plug wires arc on cylinders #2 and #3 under load, Wide Open Throttle, producing power loss and surging. Thought the problem was solved until today. I hate to say it, but the only cause of that is poor wire quality. I saw that the plugs that were arcing before to headers weren’t anymore. It looked like the #5 was the main problem again. It's not normal - or safe - for your plugs to arc or spark. With a bad spark plug, the vehicle will halt and continue. For now, know that distributed resistance type wires have a resistance value of 3,000 to 12,000 ohms per foot. Motorsport wires are notorious for having this problem. is there a home way remedy this or do i need to buy those protective covers? Was the caue of the wires were put together come in 45 so... Wires wear out internally because this high voltage burns them out, and deteriorate. Those boots laying right on the passenger side is arching out to be a crack in cylinder. 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