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Don 'Mo Lurch'
Don 'Mo Lurch', Buick Mechanic
Category: Buick
Satisfied Customers: 18162
Experience:  GM, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.
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Buick LeSabre Limited: I am getting knock sensor code on my

Resolved Question:

I am getting knock sensor code on my 2004 Buick Lesabre. Can you tell me where it (they?) are located. A diagram or picture would be great.
Thanks
Submitted: 2 years ago.
Category: Buick
Expert:  Don 'Mo Lurch' replied 2 years ago.

 

 

Thanks for using J/A / Pearl
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My answer may not be to your liking, but is a correct & honest answer.
Many times the only fix will be by Dealer or Shop, so please do not hold that against me.

 

Can you tell me where it (they?) are located. A diagram or picture would be great.

 

The Knock Sensors are located on the sides of the engine

 

graphic

 

Here is Buick procedures also:

 

click links below

 

REMOVE KNOCK SENSOR 1

 

REMOVE KNOCK SENSOR 2

 

 

Please Rate my answer as I have provided the info you requested\\

 

 

 

 

Don 'Mo Lurch', Buick Mechanic
Category: Buick
Satisfied Customers: 18162
Experience: GM, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.
Don 'Mo Lurch' and 4 other Buick Specialists are ready to help you
Customer: replied 2 years ago.
Knock sensor #2 is my problem. It appears to be broken (loose when I wiggle the end of it). I can't for the life of me figure out how to get a socket up there, the transmission is in the way. Is there a special socket that you guys use? If I leave it unplugged, will the check engine light come back on?Thanks,Bob ,
Expert:  Don 'Mo Lurch' replied 2 years ago.

 

 

Is there a special socket that you guys use?

 

best to get to it from car on rack.....
wrench is used

 

If I leave it unplugged, will the check engine light come back on?

 

yes...........
Since you are going to replace it, you could plug the new one in & wire tie up to have the computer see the Sensor............

 

 

 

 

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