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Coil pack? Peugeot 406 - wibble
I've just replaced my coil pack on my 406. Its fixed my mis-fire problem but I'm just wondering what a coil pack does? The one on my car is a plastic sealed unit with 4 long rubber things that fit down some holes to the spark plugs, so something to do with the ignition. What will I find if I crack open the old one?
Coil pack? - mfarrow
I've just replaced my coil pack on my 406. Its
fixed my mis-fire problem but I'm just wondering what a coil
pack does?


It's like a transformer, it converts the low voltage (12v) of your car and gives out a much larger voltage (10,000v?) which go off to the spark plug through leads (the rubber things).
What will I find if I crack open the
old one?


As I've never cracked one open, I couldn't tell you for definite, but something like a big coil of copper wires wrapped around a laminate core. One of these thin wires will have broken, causing the misfire.

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Mike Farrow
Coil pack? Peugeot 406 - Altea Ego
"I've just replaced my coil pack
What will I find if I crack open the old one?"

Coils


"to the spark plugs
so something to do with the ignition?"

funnily enough - yes.