Joined
·
56 Posts
When I replaced spark plugs last time, I noticed that two of the ignition coils have a funny-looking surface. At first I thought they were caked with greasy oil, but the uneven texture is the surface itself and is rock hard. It looks like the plastic has melted or been attacked by a chemical reaction. The spark plug tubes are fine and clean, so I struggle to figure out how this happened. The coils were in the car when I bought it in late 2019, and I have not had any functional issues with them so far.
My question is: what might cause this, and should I worry about it?
![925762]()
My question is: what might cause this, and should I worry about it?
