How to Open Spark Plug Wire Looms
Organizing spark plugs with wire looms reduces clutter in your vehicle's engine compartment and keeps spark plugs from contacting hot exhaust manifolds. The spark plug wires slide into the lower section of the wire loom. When the lower and upper sections of the wire loom connect, the spark plug wires cannot come loose. Opening the wire loom allows you access for changing spark plug wires and other engine components below the installed wires.
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Things You'll Need
- Phillips head screwdriver
- Allen wrench set
- Shop rag
- Silicone lubricant
- Flat head screwdriver
Instructions
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Opening Screw Type Wire Looms
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1
Loosen the screws holding the top and bottom sections of each wire loom by turning them counterclockwise with a Phillips head screwdriver. Set the screws and the top sections of each wire loom in a safe location.
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2
Slide an Allen wrench into the screw holding the bottom section of the wire loom in place. Turn the Allen wrench counterclockwise to remove the wire loom if you need to access components sitting below the spark plug wires.
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3
Clean the wire looms with a clean rag. Spray the spark plug wires with silicone lubricant before reassembling the wire loom.
Opening Snap Type Wire Looms
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4
Wipe each wire loom with a clean rag.
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5
Push the tip of a flat head screwdriver against the tab located on the front edge of the wire loom. Pull up on the top section of the wire loom.
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6
Inspect the plastic hinge of the wire loom for cracks or excessive wear. Replace any damaged wire looms to prevent wire loom failure, which could lead to heat damage.
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1
Tips & Warnings
Wait for your vehicle to cool down before working around the engine compartment.
