Jaguar 101: What's a coil pack?
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Join Date: Sep 2008
Location: Damon /Houston, Texas
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The answer is the placement of the coils. The Jaguar S Type has individual coils not coil packs. These coils are mounted directly to the spark plugs. This means they are mounted on the engine and very close to the combustion chamber. This also means they are exposed to a lot of heat cycles.
My prior car was a SHO it has 3 coil packs. So each coil pack feeds two cylinders. But the coil packs were mounted externally on the engine. They lasted longer. On even older cars they had one coil for eight cylinders. Some coils were even mounted on the fender or firewall to keep them from the heat and vibration of the engine. With a modern DOHC COP setup the coils are wear items just like the spark plugs.
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My prior car was a SHO it has 3 coil packs. So each coil pack feeds two cylinders. But the coil packs were mounted externally on the engine. They lasted longer. On even older cars they had one coil for eight cylinders. Some coils were even mounted on the fender or firewall to keep them from the heat and vibration of the engine. With a modern DOHC COP setup the coils are wear items just like the spark plugs.
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It's a balance between things which are hard to find out except on here (or similar jag forum) and things which are trivially easy to find using google etc.
Using google etc for simple things means you get a quicker answer and don't fill up the forum with things better answered via google.
Using google etc for simple things means you get a quicker answer and don't fill up the forum with things better answered via google.
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