Knock Sensor Replaced
Thread Starter
Drifting
Joined: Nov 2004
Posts: 1,895
Likes: 0
From: Lee's Summit MO
Knock Sensor Replaced
Thanks in large part to the wealth of information presented in this forum, I replaced my knock sensor over the weekend.
All the pics can be found here:
http://65.28.45.119/Cars/MyCorvette/...sor/index.html
I'm wondering about the 2 foam pads found on the bottom of the intake manifold.
Are these intended to stop the water infiltration into the knock sensor area?
Also, the front knock sensor was bad. The space where it is mounted was full of oil. Any thoughts about how this space might get oil to it?
The back sensor was fine, and I did not find any evidence of water infiltration.
Thanks for the advice, both past and future.
All the pics can be found here:
http://65.28.45.119/Cars/MyCorvette/...sor/index.html
I'm wondering about the 2 foam pads found on the bottom of the intake manifold.
Are these intended to stop the water infiltration into the knock sensor area?
Also, the front knock sensor was bad. The space where it is mounted was full of oil. Any thoughts about how this space might get oil to it?
The back sensor was fine, and I did not find any evidence of water infiltration.
Thanks for the advice, both past and future.
Thread Starter
Drifting
Joined: Nov 2004
Posts: 1,895
Likes: 0
From: Lee's Summit MO
It's not really oil "IN" the intake manifold so much as it is oil "UNDER" the intake manifold, filling the space that the Knock Detector occupies.
It was actually under the plastic cap.
It was actually under the plastic cap.
Racer
Joined: Nov 2004
Posts: 395
Likes: 0
From: TX
Only way I can think of is that someone spilled oil during an oil change, or one of the hard lines had a leak. I used RTV to create a dam to prevent any water (or oil I suppose) to enter the knock sensor. There was actually a TSB describing this very procedure for my old SS.
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
If you go one step further and take the valley cover off, you'll notice the knock sensor intrudes into the valley that is exposed to oil splash.
This is the Z06 version of the valley cover but you can see how oil could make it's way up past the sensor if the seal was bad.
This is the Z06 version of the valley cover but you can see how oil could make it's way up past the sensor if the seal was bad.
