# Dielectric grease on spark wire bad? **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [January 23, 2019, 1:24am UTC](https://community.cartalk.com/t/dielectric-grease-on-spark-wire-bad/133149 "2019-01-23T01:24:42Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![iag360\_141684](https://avatars.discourse-cdn.com/v4/letter/i/df705f/32.png) [@iag360\_141684](https://community.cartalk.com/u/iag360_141684)\ **Post date:** [January 23, 2019, 1:24am UTC](https://community.cartalk.com/t/dielectric-grease-on-spark-wire-bad/133149/1 "2019-01-23T01:24:42Z")
2004 Kia amanti ![Screenshot_20190122-202149](https://global.discourse-cdn.com/cartalk/original/2X/f/f435245cec4b061b8626d40809f014826284634c.jpeg) I have a p0304 and I’ve already changed the spark plug. The ignition coil looks good as well. But is it bad to have this much grease on the metal contact? ---
**Author:** ![tcmichnorth](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tcmichnorth/32/25126_2.png) [@tcmichnorth](https://community.cartalk.com/u/tcmichnorth)\ **Post date:** [January 23, 2019, 1:52am UTC](https://community.cartalk.com/t/dielectric-grease-on-spark-wire-bad/133149/2 "2019-01-23T01:52:10Z")
> [@iag360\_141684](#): > > I have a p0304 and I’ve already changed the spark plug I hope you changed all the plugs. > [@iag360\_141684](#): > > The ignition coil looks good as well. You cannot tell if coils are bad by looking. Dielectric grease should cover inside of boot and electrode. ---
**Author:** ![tcmichnorth](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tcmichnorth/32/25126_2.png) [@tcmichnorth](https://community.cartalk.com/u/tcmichnorth)\ **Post date:** [January 23, 2019, 1:57am UTC](https://community.cartalk.com/t/dielectric-grease-on-spark-wire-bad/133149/3 "2019-01-23T01:57:11Z")
Try switching coil with another cylinder and see if the code changed. ---
**Author:** ![Barkydog](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/barkydog/32/2470_2.png) [@Barkydog](https://community.cartalk.com/u/Barkydog)\ **Post date:** [January 23, 2019, 2:03am UTC](https://community.cartalk.com/t/dielectric-grease-on-spark-wire-bad/133149/4 "2019-01-23T02:03:58Z")
Never used it, doubtful it does anything. ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [January 23, 2019, 3:02am UTC](https://community.cartalk.com/t/dielectric-grease-on-spark-wire-bad/133149/5 "2019-01-23T03:02:26Z")
> [@tcmichnorth](#): > > Dielectric grease should cover inside of boot and electrode. On the inside of the boot and the connector with the plug, not the electrode. It helps give a better connection and helps to get the boot off again instead of sticking on the plug. I always use it and on bulbs too. ---
**Author:** ![thegreendrag0n](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/thegreendrag0n/32/9265_2.png) [@thegreendrag0n](https://community.cartalk.com/u/thegreendrag0n)\ **Post date:** [January 23, 2019, 3:29am UTC](https://community.cartalk.com/t/dielectric-grease-on-spark-wire-bad/133149/7 "2019-01-23T03:29:37Z")
don’t worry about removing grease from electrode, it will do no harm, only make things better you were asked the question above if you replaced all plugs or only one, this is quite important question to answer also, you were given advise to swap coil pack, also good to diagnose your actual issue ---
**Author:** ![iag360\_141684](https://avatars.discourse-cdn.com/v4/letter/i/df705f/32.png) [@iag360\_141684](https://community.cartalk.com/u/iag360_141684)\ **Post date:** [January 23, 2019, 3:29am UTC](https://community.cartalk.com/t/dielectric-grease-on-spark-wire-bad/133149/8 "2019-01-23T03:29:51Z")
What part is the electrode? The part I showed? ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [January 23, 2019, 3:34am UTC](https://community.cartalk.com/t/dielectric-grease-on-spark-wire-bad/133149/9 "2019-01-23T03:34:46Z")
The electrode is the part of the spark plug that sparks inside the engine. Just terminology. The terminal is what you stick the plug wire on. [https://www.google.com/search?q=spark+plug+parts+diagram&tbm=isch&source=iu&ictx=1&fir=Qd2R\_PXlPNEYFM%3A%2CAUPq-nVg4TV-7M%2C\_&usg=AI4\_-kSPoH5vUP71BVrbSFpbuFYV2VN8OQ&sa=X&ved=2ahUKEwiklpy7\_ILgAhUytIMKHbkpDtYQ9QEwAXoECAAQBg#imgrc=Qd2R\_PXlPNEYFM:](https://www.google.com/search?q=spark+plug+parts+diagram&tbm=isch&source=iu&ictx=1&fir=Qd2R_PXlPNEYFM%253A%252CAUPq-nVg4TV-7M%252C_&usg=AI4_-kSPoH5vUP71BVrbSFpbuFYV2VN8OQ&sa=X&ved=2ahUKEwiklpy7_ILgAhUytIMKHbkpDtYQ9QEwAXoECAAQBg#imgrc=Qd2R_PXlPNEYFM:) ---
**Author:** ![tcmichnorth](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tcmichnorth/32/25126_2.png) [@tcmichnorth](https://community.cartalk.com/u/tcmichnorth)\ **Post date:** [January 23, 2019, 4:02am UTC](https://community.cartalk.com/t/dielectric-grease-on-spark-wire-bad/133149/10 "2019-01-23T04:02:30Z")
The electrode was a wrong statement made by me. @bing corrected me accurately ---
**Author:** ![iag360\_141684](https://avatars.discourse-cdn.com/v4/letter/i/df705f/32.png) [@iag360\_141684](https://community.cartalk.com/u/iag360_141684)\ **Post date:** [January 23, 2019, 5:02am UTC](https://community.cartalk.com/t/dielectric-grease-on-spark-wire-bad/133149/11 "2019-01-23T05:02:16Z")
Yes but I’m talking about the wire in the pic. That wire plugs into a ignition coil ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [January 23, 2019, 5:42am UTC](https://community.cartalk.com/t/dielectric-grease-on-spark-wire-bad/133149/12 "2019-01-23T05:42:43Z")
> [@iag360\_141684](#): > > That wire plugs into a ignition coil Same difference. Just plugs into the other end. ---
**Author:** ![PvtPublic](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/pvtpublic/32/13089_2.png) [@PvtPublic](https://community.cartalk.com/u/PvtPublic)\ **Post date:** [January 23, 2019, 10:31am UTC](https://community.cartalk.com/t/dielectric-grease-on-spark-wire-bad/133149/13 "2019-01-23T10:31:27Z")
> [@iag360\_141684](#): > > What part is the electrode? The part I showed? > [@bing](#): > > The electrode is the part of the spark plug that sparks inside the engine. Just terminology. > The terminal is what you stick the plug wire on. > [@iag360\_141684](#): > > Yes but I’m talking about the wire in the pic. That wire plugs into a ignition coi Close the hood and back away slowly. Do it NOW and no one gets hurt.😱