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On the 2.4L twin cam, you remove the 4 boots holding the metal cover (The cover says 2.4L Twin Cam), then you remove the wiring harness on the right side of the cover, pull up on the cover. The cover may not come off that easy at first, if it doesn't then you'll need to gently wiggle it until it lifts up. Then take off the spark plug boots that go over the spark plugs. Then just simply put the new boots back on.

If it's the 2.2L, remove the plug wires off the spark plugs, but do it one by one so you don't mess up the order. Then trace the wire backwards until you reach the other end, it will either be on the side of the valve cover or on the back on the engine between the engine and the firewall. If it's in the back of the engine then it will be easier to access the coils where the plug wires are located from underneath the car. Then remove the other side of the plug wire and put the new wire one. Do that for all 4 wires.

If you remove all 4 wires at once, make sure you mark the correct order in which the wires go back.

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Q: How change spark plug wires Pontiac Sunfire?
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