Questionhow involved is pulling intake besides removing 4 bolts on top of intake and thank you for your help
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how do we replace ignition coil on a 2001 discovery it is between engine and firewall and do we need to pull intake if so how do we
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You have to remove the intake to access the coils. It's a 3-4 hour job. I suggest fitting ne wplugs and wires at the same time because it's so much work to get at them.
AnswerThere is quite a bit around it - the throttle body; the throttel body heater hoses; alternator may be in the way; etc.
Look closely and you'll see why I told you it took that long.
There is no special trick to it but there's a lot to remove and refit.