silicone on coils

[dNyce LS]

I was talking to some of the mechanics at my job about my coils always blowin out, and I was told that I could use silicone around the coil where it meets the valve cover to keep water out the wells, (was told this was a fix that is used on the jags) which is what they said was most likely causing the failures.

Has anyone heard of this and/or tried this before?

 

[1LoudLS]

if you are getting water in the wells then maybe, but i think that its more common for oil to seep down in the well from a bad VCG, or the coil just breaking down on the inside also seems to be pretty common

 

[dNyce LS]

That's what I was thinking. I may try it after I get new coils and plugs and maybe vcg's (if needed). Hopefully it works

 

[1LoudLS]

I may try it after I get new coils and plugs and maybe vcg's (if needed).

do you have oil seeping down into the plug wells? if not then there is no need for VCG's

 

[joegr]

They did this at the factory on at least some of the 04s. They seemed to have stopped doing it by 06.
I haven't had water on any of the coils on my 04 or 06, and we get some heavy rain here.

 

[dNyce LS]

i dont kno for sure, but when i changed the number 8 coil a couple months ago it came out dry.

 

[linc249]

I was having an issue with my coils and when I replaced them, I covered them in dielectric grease, and have not had an issue since.

 

[dNyce LS]

I was having an issue with my coils and when I replaced them, I covered them in dielectric grease, and have not had an issue since.

thats....usually how it works lol jk

 

[oddball]

Funny story. I replaced only two coils when I first got the car, noticed that the new coils had dabs of grease in the boot. So I pumped some dielectric grease into the old coils I was reusing.
That was really stupid.
Grease heated up, thinned out, ran down the plugs making a very nice short circuit. Idled like :q:q:q:q, threw codes.
Took 'em out, cleaned it all up, back to running great.

 

[gcwimmer]

The whole thing about dielectric is that it is nonconductor of direct electricity, are you sure it said dielectric on the product.

 

[NickT88LSC]

I have had Dielectric grease inside the boots where they contact the spark plugs since 30,000 miles, now have 82,000 now coils failed yet. I am due I am sure though