If you car came with them, replace them with the same style. MAG wires have far less electrical resistance and because of that, they require less current to fire the spark plug. 2008 496 Mercruiser engine. When your car refuses to start, it might not a battery fault but, a bad spark plug wire. Alldatadiy.com, on the other hand, uses the factory diagrams. You will get differing opinions on when you should change your plug wires. Thanks. Changing spark plug wires on a regular basis is essential to keeping a vehicle’s engine at its best. They don’t fit well, and overall, they’re a bad choice. High Performance: High performance doesn’t always mean a long lifespan, and some types of high performing spark plug wires may need relatively frequent replacement (every 30,000 to 40,000 miles). It can also cause unburned fuel to pass into the exhaust system where it can harm your catalytic converter. There’s no single rule that governs all vehicles. Patrick is fantastic! This is a typical question that is commonly asked and has a simple answer. Highly recommended. Once the first spark plug is out, replace it with a new spark plug, making sure it's the same plug or whatever is listed in your owner's manual. Step-by-Step Instructions. If the insulation is compromised, or there’s an internal break, you’ll need to replace your wires even if it’s not yet time. Firmly grasp the rubber boot around each spark plug and pull the wire away from the plug. Which ones are best? The answer depends on the type of engine in your vehicle. This video show the proper us of dielectric grease on spark plug wires. To avoid mixing up the spark plug wires, remove and replace one plug at a time, or use tape to label each wire. Thus, a spark plug can give you good information about your engine. Most are numbered for clarity. Does quick work and has great communication - really appreciated his work on my car! If you’re tracking down a wiring issue, Eautorepair.net is the better choice. ... How To Change a Lawn Mower Spark Plug. You will be using the socket to unscrew the plug from the engine block. It doesn't take much heat to interfere with worn out wires in new ignition systems that demand precise electrical power. By Product Expert | Posted in Service, Tips and Tricks on Thursday, May 17th, 2018 at 6:51 pm Nissan Spark Plug Change Interval. Having trouble starting your car? Here are the 11 signs of bad spark plug wires to take notice of then you are ready to change your plug wires. Use your camera to record the route of each wire and spark plug. A part I ordered didn't need to be replaced. Many people put their car not starting down to being out of fuel or … Also, DIYers often forget to apply dielectric grease to each end of the spark plug boot. Distributed resistance wires are made with a fiberglass core, Fiberglass carbon core of distributed resistance style spark plug wire, that’s impregnated with carbon and surrounded with silicone insulation. If the boot sticks, use a twisting motion to pull the boot and plug wire free. Please see our, Subaru Forester - Ignition Cable (Spark plug wires) - Littleton, Colorado. He also helped me with a windshield wiper I could't put on. The reason for the spiral is that it creates a magnetic field and that field reduces RFI. Thanks Greg! RFI can mess up radio reception and if it’s severe enough, it can interfere with sensor signals and computer operation. That avoids the doubts of being caught off-guard by an engine malfunction because of wearing out ignition cables. Lets talk spark plug wires and boots! Spark plugs and wires are an important topic because moving electricity to the plug to produce a spark is so critically important. When I go in for the free oil changes now, the dealer keeps trying to sell me plugs and wires for about$400. Platinum or iridium spark plugs cost more ($15-40 each). It’s safest to change your ignition cables before they wear out. It’s a simple answer; they carry the firing voltage to the spark plugs and if they’re not performing up-to-par, neither are your spark plugs. The most likely cause is that one of the electronic modules or sensors are starting to break down... Hi there. The life expectancy of spark plugs will vary widely based on the vehicle and engine designs and spark plug type. Should I change them for preventative maintenance since they have been in service since 2009, or leave them be until I notice an issue? Economy wires don’t have these features. Fit the socket securely onto the plug to avoid damage. Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. Spark Plug Wire Separators, 7mm/8mm Spark Plug Wire Holder Engine Spark Plug Wire Separator Divider for Chevy Ford & Mopar(Black) by Keen so. What Is the Difference Between Conventional, Electronic and Distributor-less Ignition Systems. It's about that time for me to replace the spark plug wires on my 08road king. However, there are other factors that can play a role in the timing. As I said earlier, distributed resistance type wires have a resistance value of 3,000 to 12,000 ohms per foot. 155 hours on the clock. It’s all in the insulation. There should be a very slight drag on the gauge when passing a 0.040" (0.038"-0.043") gauge between the center and outer electrode. I have the original wires, boot and coils on the motor. When your steering wheel locks it is usually at the worst time. Finally, reattach the wire plug and repeat with the rest of the spark plugs. Don’t pull the wire itself. Over time, spark plug wires and boots may be damaged by heat or wear with age. The wider the gap between the two means that greater voltage is required. Many DIYers know how to change spark plugs but not everyone realizes that all spark plug wires aren't created equal. Note the way the cap is oriented. Once again, Greg did a great job! Clean off the old plug and the area around it with a rag or small brush. I personally run NGK V-Power plugs in mine. YourMechanic All rights reserved. Kia Soul - Ignition Cable (Spark plug wires) - Austin, Texas. If the ignition wires, or "spark plug" wires, wear out before the specified mileage, they must be replaced early. Spark plug wires, also known as ignition cables, are a key part of the ignition system. This includes intervals of 30k, 60k, 100k, and even 120k miles. They include the exact same style factory coil boots and they match the factory set in length and fit. 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