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mike, UK Car Mechanic
Category: UK Car
Satisfied Customers: 107
Experience:  nvq level 3 in feild of subaru's for 5 years and own, own garage
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bad spark plugs / bad install cause damage to the coil pack (v6 engine

Resolved Question:

Can bad spark plugs / bad install cause damage to the coil pack (v6 engine)
Submitted: 8 years ago.
Category: UK Car
Expert:  mike replied 8 years ago.

hello and welcome to


there are only a couple of things that can cause this but i would tend to agree with you .


try removing the plugs and checking them with a feeler guage as bad install can cause them to close up and them not notice .



hope this helps



rgds mike.

Customer: replied 8 years ago.
Thanks, XXXXX XXXXX confirm... could that cause electrical arcin & in turn damage the coil pack?
Expert:  mike replied 8 years ago.

the coil pack have diodes inside it which only allow the electrical impulses one way normally unless one of these diodes is damaged.


bad handleing will problebly have caused your problem.


and it would cause arking


also if they caught the leads this could also cause the arking .


please leave feedback if this helps and press the accept tab



rgds mike.

mike and other UK Car Specialists are ready to help you
Customer: replied 8 years ago.
Thanks for your help