# 2005 Mercury Sable - Changed wires, now it seems like it runs on just 3 cylinders

**URL:** <https://community.cartalk.com/t/2005-mercury-sable-changed-wires-now-it-seems-like-it-runs-on-just-3-cylinders/142395>\
**Category:** Maintenance/Repairs\
**Tags:** mercury\
**Created:** [June 16, 2019, 8:25pm UTC](https://community.cartalk.com/t/2005-mercury-sable-changed-wires-now-it-seems-like-it-runs-on-just-3-cylinders/142395 "2019-06-16T20:25:47Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Richieshannon](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richieshannon](https://community.cartalk.com/u/Richieshannon)\
**Post date:** [June 16, 2019, 8:25pm UTC](https://community.cartalk.com/t/2005-mercury-sable-changed-wires-now-it-seems-like-it-runs-on-just-3-cylinders/142395/1 "2019-06-16T20:25:47Z")

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I’ve changed all 6 spark plugs and wires . when pulling out from dead stop it acts like it’s running on 3 cylinders. Not sure if it’s something to do with fuel pump or filter or maybe a sensor or even coil pack

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [June 16, 2019, 8:42pm UTC](https://community.cartalk.com/t/2005-mercury-sable-changed-wires-now-it-seems-like-it-runs-on-just-3-cylinders/142395/2 "2019-06-16T20:42:40Z")

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So is the check engine light on? I imagine it is. have the codes read and post them here - the number, in the format P1234.

Be nice to know some details about the car… mileage, engine, transmission ect.