Knock sensor location

Tiny
R. DRAIN
  • MEMBER
  • 2000 CHEVROLET BLAZER
Engine Mechanical problem 6 cyl Four Wheel Drive Automatic 104, 00 miles

I need the location of the knock sensor can you please tell me?
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Thursday, September 30th, 2010 AT 11:07 AM

7 Replies

Tiny
KEN
  • ADMIN
Hello,

The knock sensor is located at the rear of the block near the firewall at the transmission flange.

Here is a diagram (below) to help you see where it is.

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken
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Thursday, June 15th, 2017 AT 12:36 PM
Tiny
GFUNARO
  • MEMBER
  • 1998 CHEVROLET BLAZER
I am trying to locate the knock sensors for a 98 chevy blazer with a v6 engine. I cannot find them anywhere! I looked all over the block and around the starter. The book says " located in engine block. One under left bank cylinder head, and one under right bank cylinder head." Please help.
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Thursday, June 15th, 2017 AT 12:37 PM (Merged)
Tiny
MIKEYBDMAN
  • MEMBER
No wonder. Approach the engine from the left side, and look under the distributer. It appears to be located just forward of the transmission bellhousing, and just on the left side of top of the engine block. It is aft of the left head, and almost looks like it is right on the flange of the engine to tranny mount.
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Thursday, June 15th, 2017 AT 12:37 PM (Merged)
Tiny
NUMPY05
  • MEMBER
  • 2001 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 170,000 MILES
Engine Mechanical problem
2001 Chevy Blazer 6 cyl Four Wheel Drive Automatic 170000 miles

I can't find the knock sensors I know they should be under the head but I don't see them
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Thursday, June 15th, 2017 AT 12:37 PM (Merged)
Tiny
BLUELIGHTNIN6
  • EXPERT
The knock sensor (KS, only one of them) for the 4.3L engine is located on the top rear of engine, pic below..


http://www.2carpros.com/forum/automotive_pictures/261618_Graphic_272.jpg

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Thursday, June 15th, 2017 AT 12:37 PM (Merged)
Tiny
CQUELETTE
  • MEMBER
  • 2001 CHEVROLET BLAZER
  • 6 CYL
  • 2WD
  • MANUAL
  • 130,000 MILES
Computer problem
2001 Chevy Blazer 6 cyl Two Wheel Drive Manual 130000 miles

My knock sensor is throwing a check engine light and I have no idea where it is located. Can you help
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Thursday, June 15th, 2017 AT 12:38 PM (Merged)
Tiny
RASMATAZ
  • MEMBER


http://www.2carpros.com/forum/automotive_pictures/12900_ks_23.jpg

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Thursday, June 15th, 2017 AT 12:38 PM (Merged)

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