Change sparks plugs on a 2000 jaguar s-type 4.0?

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1286629

2026-04-04 22:30

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This car has the coil-on-plug configuration meaning that each spark plug has its distinct coil. Looking at the engine from the front you will notice the V8 arrangement with two valve covers, one on each side of the cylinder head. On the valve cover is another cover plate which is secured by (6) 7mm screws. Remove those to access the bank of coils/plugs. The coils are secured to the engine with 7mm screws. Remove them. Also unfasten the coils from the wiring harness and gently twist the coils off the plug. Remove the plugs with a 5/8" deep socket and replace. Reassembly is the reverse. When reinstalling coils, make sure you coat the bottoms with dielectric grease to ease removal the next time. Also smear a light coat of no-seize compound on the plug threads to make them easier to remove as well.

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