Location of anti-knock sensor (s)?


Asked by Dec 14, 2010 at 06:39 PM about the 2000 Buick Regal LS Sedan FWD

Question type: Maintenance & Repair

Is there one of these or more? Need to remove them to drain anti-freeze properly.  Photo?  3.8l engine.

11 Answers


Theres actauly two knock sensors. On located behind the started, and the other one behind the ehaust manifold.

9 people found this helpful.

This engine sits sideways so do you mean "behind" as in the front is where the serpentine belt is and the back is where the trans-axle is? Or "behind" as in the dashboard side (back of engine compartment) and "front" the radiator side. Or did you mean I need to remove the starter/manifold to get to them? This engine is totally new to me, but I do like to do my own work so any help is great. The Haynes Manual doesn't mention them.

2 people found this helpful.

I would really recommend going over to EBAY and getting a factory service manual for your car. They are a little higher than Haynes but there is no comparison. They generally come in a set of two or three.


A factory service manual wouldnt have that information. heres some pictures to help...

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Then where did you get those images?

2 people found this helpful.

Wow thanks for the drawings! Now I know where they are hiding.

1 people found this helpful.

From a program i have on my computer.

1 people found this helpful.

Thanks a million for your images, could not find this information anywhere else on the net.


Were is bank 2 knock senser location any pics thank u

8 people found this helpful.

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