Rayyy
Full Access Member
2001 Yukon XL 5.3
I’ve always been under the impression that coil packs are considered good until they fail, with no need to replace otherwise.
Then I read up a bit about coils being needed to be replaced every 100k miles?
(I’m currently at 153k miles with original coil packs).
Does anyone do this? Would I get better MPG and/or performance from fresh coil packs?
(About to do a tune up, so wondering whether to also replace the coils packs).
I’ve always been under the impression that coil packs are considered good until they fail, with no need to replace otherwise.
Then I read up a bit about coils being needed to be replaced every 100k miles?
(I’m currently at 153k miles with original coil packs).
Does anyone do this? Would I get better MPG and/or performance from fresh coil packs?
(About to do a tune up, so wondering whether to also replace the coils packs).
