Knock sensor goo?

[Pete_89T2]

Originally Posted by vrracing

I saw someone in the FD3S forum had their knock sensor oozing out and they said they were going to fill it with silicone. It's been two years and he never reported back. Any one know if that's a workable approach? The car never seems to detect knock so it appears to be working for now.

Thanks

I've got the knock sensor goo problem also, but I never had a problem with no starts or ignition misses. FWIW, the goo in my knock sensor appears to be dripping out from the junction where the wire enters the sensor body - the backside of the sensor is still intact & solid. The goo happens to be melted potting compound that is used to seal & protect electronic devices from the elements, so the silicone approach should work fine. I wouldn't try to fill it though, maybe just apply the silicone externally over the portion that appears to be leaking.