did autolite spark plugs screw up coil or coils ??

[YarisSedan]

Well if you look one spark plug cost 5.95 and another spark plug cost 20-28 dollars depending where you purchase them there has to be a difference. One is designed by a oe manufacture for ford and one is a oe manufacture for toyota. Me personally i would rather get the part from toyota. From my experience autolite starters, and autolight altenators and batterys are pieces of junk. My friend works at kragens and he says he gets a rediculiouse amount of warrenty returns on them. So i would not use a spark plug made by that particular brand in my vehicle. Either denso or ngk is all i would use. All we know is many users have had no problems with coil failures and users that have had coil failures reported using a alternative plug. Search all the posts for coil failures you will find what i am saying has some sense to it. I remember last month if orget the brand but it was suposily some high performance plug some user had problems with failed coil as well.

From my own personally experience the only coils i have changed on cars when i removed the plug it was either extremely worn out or a different type of plug.

[la_scanner]

Originally Posted by YarisSedan

Well if you look one spark plug cost 5.95 and another spark plug cost 20-28 dollars depending where you purchase them there has to be a difference. One is designed by a oe manufacture for ford and one is a oe manufacture for toyota. Me personally i would rather get the part from toyota. From my experience autolite starters, and autolight altenators and batterys are pieces of junk. My friend works at kragens and he says he gets a rediculiouse amount of warrenty returns on them. So i would not use a spark plug made by that particular brand in my vehicle. Either denso or ngk is all i would use.

True. from what i read and have heard from you guys. even on phone with autozone an hour ago. i now know that AUTOLITE = CRAP. I have always been one that says you get what you pay for. at the time when those were put in. i was just trying to get car running without having to have my grandma hastle with it. so even though its junk, it's still the correct TYPE of plug. also, when i was on phone with autozone, the guy sounded pretty knowledgeable and said that in his opinion my mechanic is trying to help by saving us money by trying other things first. autozone dude recommended new o2 sensors and for me to try seafoam. i guess i should now look into this. and the worst thing he said was that yes the cat would be under warranty, but said labor would not be. probably would end up costing at least $1,000. when you think about it, thats a lot of money to spend on a $13,000 vehicle. no ones fault though other then on my end.

[OK Yaris]

Can't argue with Autozone Dude. Good Luck!