# Antifreeze around spark plug

**URL:** <https://community.cartalk.com/t/antifreeze-around-spark-plug/54377>\
**Category:** Maintenance/Repairs\
**Tags:** mercury\
**Created:** [August 30, 2010, 12:52am UTC](https://community.cartalk.com/t/antifreeze-around-spark-plug/54377 "2010-08-30T00:52:38Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Slovac](https://avatars.discourse-cdn.com/v4/letter/s/5daacb/32.png) [@Slovac](https://community.cartalk.com/u/Slovac)\
**Post date:** [August 30, 2010, 12:52am UTC](https://community.cartalk.com/t/antifreeze-around-spark-plug/54377/1 "2010-08-30T00:52:38Z")

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I think the intake manifold has a crack because there is antifreeze around one of the spark plugs. How do you remove the plugs? Can I epoxy the plastic manifold?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [August 30, 2010, 12:55am UTC](https://community.cartalk.com/t/antifreeze-around-spark-plug/54377/2 "2010-08-30T00:55:50Z")

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You can’t epoxy a plastic intake manifold. It has to be replaced.

Tester

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**Author:** ![tardis](https://avatars.discourse-cdn.com/v4/letter/t/f0a364/32.png) [@tardis](https://community.cartalk.com/u/tardis)\
**Post date:** [August 30, 2010, 1:25am UTC](https://community.cartalk.com/t/antifreeze-around-spark-plug/54377/3 "2010-08-30T01:25:14Z")

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Which plug? Is it #4, if so, it is probably where the heater hose comes out of the manifold. Replacement is the correct answer, but I would be tempted to pull the metal heater hose tube out and JB-Weld it back in.

Why are you wanting to remove the spark plug? It’s pretty easy to do, but I wouldn’t do it till I got all of the liquid out of the plug well.

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**Author:** ![Slovac](https://avatars.discourse-cdn.com/v4/letter/s/5daacb/32.png) [@Slovac](https://community.cartalk.com/u/Slovac)\
**Post date:** [August 30, 2010, 3:22pm UTC](https://community.cartalk.com/t/antifreeze-around-spark-plug/54377/4 "2010-08-30T15:22:08Z")

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I don’t know which plug is #4, but it is the plug closest to the passenger seat.

I wanted to pull the plugs to see which ones are fouled but I agree that I need to fix the leak first.

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**Author:** ![tardis](https://avatars.discourse-cdn.com/v4/letter/t/f0a364/32.png) [@tardis](https://community.cartalk.com/u/tardis)\
**Post date:** [August 30, 2010, 3:32pm UTC](https://community.cartalk.com/t/antifreeze-around-spark-plug/54377/5 "2010-08-30T15:32:43Z")

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That’s #4.  
Passenger side closest to the radiator is #1. The passenger side is #1 to #4, this is bank 1.  
Driver’s side closest to the radiator is #5, and closest to the driver is #8. This is bank 2.

I had a 99 that did this. The metal tube was easy to pull out of the manifold. I thought about trying some JB-Weld, but I replaced the intake manifold instead. In retrospect, I wish I had tried the epoxy first. The worst case would have been that it didn’t work and I would have wasted $5, compared to the $900 I spent on the manifold replacement.