Leak around the Knock Sensor. What is it and how to fix?

[*Y*]

Hey guys,

I have a problem with a leak around my knock sensor. What can it be? Is it worth fixing it? And finally how to do it?

[hgallegos915]

leak? what kind of leak? water? oil?

[*Y*]

it seems to be oily....

[hgallegos915]

Well the sensor itself,, i had one fall apart and the top of it its made of some sort of plastic oil thig, could be that the plastic is just gone.. take it out and post pics.

[*Y*]

Well that the whole point I kinda don't want to take it out since its hard to get to and I would have to drain the coolant and all that ....

[hgallegos915]

ooh lol yeah the knock sensor well that can be a pain lol

[*Y*]

Haha any tips or tecniques?

[Smith18]

if your not throwing a code, don't bother! haha its a pain.

So whats leaking? your valve covers are leaking oil in the valley or? if thats the case buy a valve cover gasket set and do your valve covers.

[hgallegos915]

Its easy to change the knock sensor, just a bit of time consuming. I think its worth it because you get to clean all that crap in the middle, i had leaves , dust, oil residue , the works.

[Daninski]

You need to remove the intake manifold to access the sensor right? Retorque manifold after to 225 in lbs

[Smith18]

You need to remove the intake manifold to access the sensor right? Retorque manifold after to 225 in lbs

OUCH! no not that much haha, around 20lbs is enough.

[marcdh]

that's more torque than at my wheels
the 225 that is

[Zoso124]

I've never heard of a leak around the knock sensor, its located between the heads where its totally solid aluminum. So you might want to take a closer look. There are a lot of places oil could be coming from, unfortunately a lot of it ends ups in the gully between the heads.

Daninski said Inch pounds, 225 in lbs is about 19 ft lbs.

[Smith18]

Daninski said Inch pounds, 225 in lbs is about 19 ft lbs.

so hes speaking a different language is what your saying haha SPEAK ENGLISH haha.

[marcdh]

ahhh 225 in. lbs/ inch-lbs. not 225 in pounds of force!

Also can't see how knock sensor could actually leak, being as all it does is pick up the knock sound frequencies as Zoso said in solid alu. Valve covers love to leak, generally my first port of call for oil leak.