How can be removed the spark plugs' plastic protection attached to the engine of a 1989 V6 3300 Buick Century in order to change the front spark plugs' wires?

Typically, spark wires are encased in a flexible plastic tube which is secured in usually 2 places with special clips. The tubing material gets brittle over time and cracks /breaks easily so patience and being careful are the key. After you remove the tube from its mounting points, you will notice that the tube has a split over its entire length.

Carefully spread the split open at on end then pull (one wire at a time through the split. Then reverse the process with the new wires..... unfortunately this is even more difficult and requires even more patience... good luck.....Ronco.

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