# 2005 Cadillac DeVille ignition coil change

**URL:** <https://community.cartalk.com/t/2005-cadillac-deville-ignition-coil-change/122490>\
**Category:** Maintenance/Repairs\
**Tags:** deville, cadillac\
**Created:** [August 8, 2018, 12:12am UTC](https://community.cartalk.com/t/2005-cadillac-deville-ignition-coil-change/122490 "2018-08-08T00:12:23Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Howard20](https://avatars.discourse-cdn.com/v4/letter/h/ed8c4c/32.png) [@Howard20](https://community.cartalk.com/u/Howard20)\
**Post date:** [August 8, 2018, 12:12am UTC](https://community.cartalk.com/t/2005-cadillac-deville-ignition-coil-change/122490/1 "2018-08-08T00:12:23Z")

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Can only one ignition coil obviously broken be replaced with one other used white top ignition coil?

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**Author:** ![Yosemite](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/yosemite/32/643_2.png) [@Yosemite](https://community.cartalk.com/u/Yosemite)\
**Post date:** [August 9, 2018, 11:02pm UTC](https://community.cartalk.com/t/2005-cadillac-deville-ignition-coil-change/122490/2 "2018-08-09T23:02:54Z")

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Spell check would be good here !!!

Yosemite

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**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\
**Post date:** [August 9, 2018, 11:13pm UTC](https://community.cartalk.com/t/2005-cadillac-deville-ignition-coil-change/122490/3 "2018-08-09T23:13:13Z")

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Front and rear coil packs are the same. Color is different since you see front coil pack. That’s all.

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**Author:** ![Howard20](https://avatars.discourse-cdn.com/v4/letter/h/ed8c4c/32.png) [@Howard20](https://community.cartalk.com/u/Howard20)\
**Post date:** [August 9, 2018, 11:32pm UTC](https://community.cartalk.com/t/2005-cadillac-deville-ignition-coil-change/122490/4 "2018-08-09T23:32:33Z")

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My question was just whether single coils out of a pack could be replaced with a working used coil of the same type from another pack, without loss of performance over replacing the entire pack.

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**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\
**Post date:** [August 9, 2018, 11:54pm UTC](https://community.cartalk.com/t/2005-cadillac-deville-ignition-coil-change/122490/5 "2018-08-09T23:54:54Z")

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It looks like they are individual coils sold as a complete bank of 4 or individually, you should be able to move the single coils around, they don’t appear to be unique.

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**Author:** ![Howard20](https://avatars.discourse-cdn.com/v4/letter/h/ed8c4c/32.png) [@Howard20](https://community.cartalk.com/u/Howard20)\
**Post date:** [August 10, 2018, 12:18am UTC](https://community.cartalk.com/t/2005-cadillac-deville-ignition-coil-change/122490/6 "2018-08-10T00:18:12Z")

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10-4 and a great thank you Nevada\_545. I had seen written that each entire bank would have to be replaced because of computer programming issues. I will find out for sure soon. Fuel economy is at 13.5mpg and rising after swapping out physically broken coil #4 from under EGR valve frame.