So I ended up having to figure out a way to get them and the plugs out. Achieving Success . They'll slide off the plugs easier the next time you need to do any ignition work. Some instructions say to pull the uncut wire through the boot then strip and crimp the wire end and pull it back into the boot and others say to crimp the terminal on the end of the wire first and then slide the boot over it. So I tear apart number number 2. HMMM. The spark plug wire’s “boot” is located at the rubber housing at each end of the wire. To be on the safe side it's best to toss these boots every 100,000 miles. To my surprise from the screw to the part that clips onto the top of the spark plug, open. The boot removal tool makes the job easier and prevents damaging the plug itself. Compare the old wires to the new wires to find the one with the exact same length and/or match the wires’ numbers if available. Wipe the ID of a new set of AC-Delco or Delphi boots with silicone ignition grease. Then, use a socket wrench to loosen the spark plug so you can remove it. DLE 20 spark plug boot and cap replacement I seem to recall seeing a step by step (with photos) instruction post on how to replace a damaged boot/cap with a new boot/cap kit from RCEXL. After replacing spark plugs and wires, inspect the distributor cap for signs of damage. So I decided to ohm out the boot as well. We installed plug boots and terminal ends that are used for socket style distributor caps. A: The 8mm is sufficient for most street applications. It may have been in the DLE 55 thread or the DLE 30 thread. Before you do, though, you must be sure you have the tools needed to change spark plugs. Easy step by step guide on how to replace automotive engine spark plugs, though appearances may vary, the process is similar for most engine's. However, this procedure will be similar with a variety of different cable ends. Taylor offers multiple styles of plug wires in different diameters, spark plug wire boot angles and lots of colors. Number three, yup you guess it the boot is open. 2 of the 3 that I pulled ht boots tore off in the head and were stuck to the plug. Same senario. Next, screw a new spark plug that's the same size as the old one into the hole you removed the old one from. Not to mention replace the 2 ignition coils ~24.00 a piece) since the replacement boots (~9.00 a piece) are not readily available around here. 1998 Buick Century Spark Plug Replacement Time To Replace Spark Plugs. Continuity. Replacing bad spark plugs is probably a project you can tackle on a weekend. What is everyone's trick to sliding the boot over the terminal end of "cut to fit" spark plug wires? If you see any, opt for a new distributor cap. To change spark plugs, start by carefully pulling out the first spark plug by the boot, which is the connector that connects the spark plug wire to the engine. 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