Inner coil color

[cstaff25]

So this probably doesn't matter at all, but I am curious. I was fixing several things today on my car and one of them involved taking my wires off of the coils. I noticed inside my coils that three are gold colored while one is silver. Is this normal? If it isn't, does it even matter? Oh and if you want to throw in some quick things to check for causing backfire at high rpms, go ahead, but I know there many threads about that.

Thanks.

 

[blackeagle92]

Thats normal ...It's possible some one changed out 1 of the coils at one time with a new or different one.

 

[cstaff25]

Thanks. I don't know why I didn't think about that...caught up in the moment I guess.