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Discussion Starter #1 (Edited)
swapping 2000 lesabre 3800 into a 2004 lesabre.
Somehow the rear knock sensor was missing in the swapped engine.
Can an engine run efficiently with one knock sensor and can I simply plug/seal(screw) the rear one.
It looks like the plug for the rear sensor was not connected anyway. Looks like it was attached to a plug at the bottom of the Power steering pump. Except there was no wire coming from the plug to the knock sensor. But there was a plug on the other end it that I am sure lead somewhere (PCM) possibly???.
really not looking forward to having to remove the engine.

Removed the rear one from the original engine and was able to loosen one side of the bracket and shimmy it into position in the Newsed engine. Bought a 22mm deep socket that fits the the sensor and into the tiny space where the sensor goes.

It for some reason will not screw into the engine block. I can see it, shimmy jiggle wiggle and it does not catch. What's the secret?????
 

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Discussion Starter #2
fixed

Removed the oil filter, shich had nothing to do with anything. just wanted more space, and a slight tilt of the sensor and it screwed right on in. WTH???
 
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