Question about 2001 Chevrolet Silverado

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Knock sensor where is the knock sensor on 99 chevy truck

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  • Anonymous Jan 13, 2009

    How do I replace a knock sensor on an 01 1500 5.3L?

  • grip28 Apr 15, 2009

    2000 chevy tahoe 5.3l v8 both knock sensors are bad and i do not know where they are located

  • murillom2000 Apr 18, 2009

    I have a problem with the knock sensor being bad or going bad per my mechanic. He showed me another engine (5.3 L. V8) to show me where the sensors are located. This looks like it can be an expensive repair from a labor cost stand point. The sensors are located under the intake manifold on top of the engine. I was quoted approx. $300 to replace them. This quote was conservative!



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The knock sensors are located in the rocker valley underneath the intake manifold. GEt a hynes manual to assist you in replacing them. There is acertain tightening sequence when taking the manifold on and off. It is made of a composite plastic so use care and do not over tighten.

Posted on Jul 22, 2009

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Since your there, you should replace the vally pan gasket (dealer only part about $30) and the knock sensor seals (also dealer only about $5 a peice) make sure u don't get any junk down the motor by placing clean rages in each intake port and if replacing vally pan gasket, put rags in it's opening. Make sure all matting surfaces are clean. I jus suggest this because by replacing the knock sensors u already are going to have to replace the intake set. (get felpro from auto store much better than oem trust me) and since u have to pull the pcv valve just replace it to a hole wopping $5 at auto store. I suggest this because the 5.3 motor has a habit of loosing vacume and running bad. All these parts are related to that and if u are there do it once and do it right! Hope this helps everyone.

Posted on Mar 24, 2011



Posted on Oct 05, 2008

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Posted on Jan 02, 2017

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SOURCE: knock sensor for 1997 chevy C1500 Pickup Truck

Located on right hand side of block (pass side). It is between motor mount and starter.

Posted on Nov 27, 2008

  • 1 Answer

SOURCE: bad sensor on chevy truck

There are 2 both located in the block..

Posted on Mar 20, 2009

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SOURCE: Knock sensor location

if its a cmfi or csefi injection system theres 2 knock sensors 1 on each side of engine block,1 under the left bank of block,the other under right bank of block,tbi inj. theres 1 in front of starter.

Posted on May 28, 2009

  • 138 Answers

SOURCE: need picture of knock sensor location on a 1999

In the valley under the intake, one in the front and one in the back.

It takes about 3 hrs to replace them and it's going to run you around $140 for parts. However, they rarely go bad. Usually it is due to wire chaffing or corrosion due to a coolant leak.

Posted on Dec 19, 2009

  • 1 Answer

SOURCE: Location of a knock sensor Chevy S10 truck

I just got my truck back from being fixed and now the engine light is on. They said now its the Knock sensor. I just had 2 injectors plugs and wires and ems brain put on. What now?

Posted on Aug 10, 2011

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04 Chevy avalanche knock sensors location

Nathan, 2 Knock's are located under intake manifold.
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How can i manually reset the computer on my 99 chevy silverado 1500 4x4? my oil pump is weak and it has a dry start and when i started it this mornin i think it kicked the knock sensor and shut my motor...

The knock sensor will not cause a no-start. The knock sensor only retards the timing when the engine is running. If the starter is not working we need to check the battery voltage, battery cables, starter, engine ground, neutral safety switch, ignition switch, security system. These are the only things that can cause a no crank.
If you really have the urge to clear your computer disconnect the negative battery cable for 10 minutes.

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I have a 99 chevy 1500 4x4 5.3 l got code po 332 put new ones in same code saws low voilts

This condition may be the result of corrosion of the rear bank knock sensor due to water intrusion into the sensor cavity. This condition is more apparent on vehicles in which customers frequently wash the engine compartment. Replace the rear bank knock sensor and build a dam (wall) around the sensor using RTV to divert water away from the sensor. Also, check for corrosion on the connector plug. Visually inspect the wiring going to the Rear Bank Knock Sensor for damage. After you have replaced the sensor, and checked for damages, have the code reset and see if it comes back.

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What is PO 330 Knock 2 # 2 code is in my 99 lexus rx300 truck

P0330 = "knock sensor no.2 circuit malfunction (bank 2)." This sensor is on the bank of cylinders which contain cylinder No.2. Either the sensor is bad or the wiring to the sensor is bad. The knock sensor detects when pre-ignition (pinging or knocking) is occurring and tells the computer. The computer then retards the ignition timing to prevent engine damage.

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Not shifting into overdrive and check engine light

I'm not a lexus guy , but I'm thinking that you have a vacuum leak somewhere.

Nov 06, 2009 | 1999 Lexus RX 300

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How do i change out the knock sensor on a 2006 chevy colorado

You didn't list your engine size so please pick the applicable to your motor size:

Removal & Installation 2.8L & 2.9L Engines To Remove:
  1. Lift the vehicle high enough to gain access to the knock sensor (KS) through the left front wheelhouse.
  2. Remove the left front wheel and wheelhouse liner.
Knock sensor (KS) (A), Engine harness (B), Knock sensor (KS) connector (C)

  1. Disconnect the knock sensor (KS) connector.
  2. Detach the knock sensor (KS) from the engine block.
To Install:
  1. Attach the knock sensor (KS) to the engine block.
    • Tighten the bolt to 18 ft lbs (25 Nm).
  2. Connect the knock sensor (KS) connector.
  3. Install the left front wheelhouse liner and wheel.
  4. Fully lower the vehicle.

Sep 03, 2009 | 2006 Chevrolet Colorado

1 Answer

Knock sensor 1999 Legacy 2.2

As far as there being no knock sensor on a 99 2.2 I beg to differ. I have a 99 legacy and just had a diagnostic done and mine is bad. If there is no knock sensor why would it say it was bad and why does Auto Zone, Advanced Auto and my local Subaru dealer sell them. Mine is located under the throttel body and they are rather hard to get to. No offence to who ever said ther is no knock sensor but maby you should recheck your information becuse I know there is a knock sensor since I just changed mine.

Jun 14, 2009 | 1999 Subaru Legacy

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