GMC 19154575 Wire Kit,Spark Plug

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The spark plug wires should be checked at the recommended intervals and whenever new spark plugs are installed in the engine. The wires should be inspected one at a time to prevent mixing up the order, which is essential for proper engine operation. Disconnect the plug wire from one spark plug by grabbing the rubber boot, twisting slightly, and pulling the wire free. Check inside the boot for corrosion, which will look like a white crusty powder. Push the wire and boot back onto the end of the spark plug, ensuring a light fit. If it isn't secure, remove the wire and crimp the metal connector inside the boot with pliers. Use a clean rag to wipe the entire length of the wire, removing any dirt and grease. Check for holes, burned areas, cracks, and other damage. Disconnect the wire from the distributor cap, checking for corrosion and a tight fit. Reattach the wire to the distributor cap. Check the remaining spark plug wires one at a time, ensuring they are securely fastened at the distributor and spark plug. If new spark plug wires are required, purchase a new set for your specific engine model. Remove and replace the wires one at a time to avoid mix-ups in the firing order, noting the wire routing before removing it.