Knock sensor burned out again!
Thread Starter
Drifting
Joined: Jun 2006
Posts: 1,730
Likes: 4
From: Delray Beach Florida
Knock sensor burned out again!
So about 2 years ago i had to replace the front knock sensor b/c it went out. i figured it was from washing the motor. SO for the past 2 years i bit the bullet and not cleaned my engine bay with water. (occasinally i'll clean it with a damp towel)
and NOW the sensor has gone out again. at $50 the sensor is 2 expesnsive to keep replacing.
Why has it gone out again? is it possible the wireing harness is broke not the sensor? how could i tell
and NOW the sensor has gone out again. at $50 the sensor is 2 expesnsive to keep replacing.
Why has it gone out again? is it possible the wireing harness is broke not the sensor? how could i tell
Le Mans Master
Joined: Nov 2005
Posts: 6,993
Likes: 25
2 possibilities, water from the top or oil from the bottom (there is a seal in the bottom of the well the sensor lives in). I replaced the seals on the bottom when I did mine and used form a gasket around the top to keep stuff out from the top.
$50 is expensive????
$50 is expensive????
Tech Contributor
Joined: Jan 2007
Posts: 19,511
Likes: 1,186
From: Dyer, IN
Melting Slicks
Joined: Aug 2000
Posts: 2,618
Likes: 5
From: Overland Park KS
GM had a tech bulletin on using a high temp sealant to build up a ridge around the top of the sensor well to keep water from running down and collecting in the well..
just beat me Lucky....
Last edited by KCvetteowner; Aug 19, 2009 at 04:13 PM.
