Question about 2002 Chevrolet Silverado 2500HD

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2002 chevrolet silverado 1500,4.8 engine.. were does it have the knock sensor and whats is funtion?

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There's two knock sensor's, and there under the in-take, on top og the engine, when the knock sensor detects a knock on the engine block, it will send a signal to your compute to adjust the engine timing.

Posted on Jul 06, 2010

Testimonial: "Thanks, but is it something that i would need to fix soon?"

  • Alexander Mimun
    Alexander Mimun Jul 06, 2010

    Thanks for the rating, it's best to, but you will never know the differnce if there working or not.

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I have a 2002 2500HD with the 6.0. i just replaced both knock sensors and it is still throwing a knock sensor code on #2. what could be the problem?


knock sensor job is to smooth out the engine from knocking or pinging. meaning one of cylinders is not running well

Dec 12, 2012 | 2002 Chevrolet Silverado 2500HD

1 Answer

2000 silverado knock sensor issue


I think it not real probable that the cause of your knock sensor code is the result of bad gas. However, I suppose it IS possible. Most knock sensor codes are caused by engine mechanical problems like bad pully bearings, loose timing chains, broken valve springs, collapsed valve lifters, etc. that would cause a "knocking" or "tapping" in the engine.

The next most probable cause would be damaged knock sensor wiring. I have fixed many that have had damage from rodents getting into the engine compartment and chewing on the wires. Depending on which engine your Silverado is equipped with, the knock sensor could be mounted between the cylinder heads in the valley under the intake manifold. Mice like it under there.

Then again, it all depends on WHAT KIND of knock sensor code you are getting. For 2000 Silverado there are 3 possible knock sensor codes: P0325, P0327, P0332. The diagnostics (and possible causes) change depending on which code you have.

Jan 06, 2012 | 2000 Chevrolet Silverado 1500

1 Answer

I have a 2002 chevy truck 5.3 needs knock sensor where does it go and what does it do


It is under the intake manifold,will have to be pulled off and is right under it, tells the computer if the engine is misfiring or running rough, its a little complicated to change.......

Oct 03, 2010 | 2002 Chevrolet Silverado 1500

2 Answers

What do the knock 2 sensors look like on a chevy silverado


Here is a picture of what they look like, and they are usually located above the oil pan on the side of the engine block.


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Jun 08, 2010 | 2001 Chevrolet Silverado 1500

1 Answer

How to replace the knock sensor on a 1999 chevy silverado 1500


The knock sensor is llocated on the left side of the engine block and is a single wire connector. Disconnect the wire and simply unscrew the sensor. Don't worry. There will be no fluid leaking. No tricks.

Mar 25, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

2000 chevy silverado 1500 4.8 service engine light went on read code P0327 knock sensor low input bank 1. I had both knock sensors replaces along with pcm. After just a few miles on the road service light...


It could be that your knock sensor circuit is working perfectly.You may have a knock that it is reading for long periods.
Try running it disconnected, and see if there is a clatter or knock when accelerating lightly.

You could have a vacuum leak.

Feb 25, 2010 | 2000 Chevrolet Silverado 1500

1 Answer

Where is the knock sensor located on a 2002 chevorlet pick up


On the rear of the engine block in the back of the cylinder head.Some were put on the side of the cylinder head below the exhaust manifold.Remember: your vehicle also has a knock sensor module located in the PCM (computer housing)

Oct 28, 2009 | 2002 Chevrolet Silverado 1500

1 Answer

Knock sensor on 2001 chevy silverado


on the 4.3l version the knock sensor is on the back left side of the engine right by the bell housing. on the bigger engines they are below the intake manifold in the engine valley

Aug 26, 2009 | 2001 Chevrolet Silverado 1500

1 Answer

Service engine soon light is on and when hooked up to the computer at auto zone it mentioned a knock sensor issue. Is this common? Also is this something easily changed? It is a 2002 Z71 with about...


The knock sensor is easily replaced. If you look below the passenger side exhaust manifold, you should see it sticking out of the side of the engine block. it'll have an electrical connector, that once unplugged, will allow you to unscrew the sensor from the engine block. I hope this helps.

Jul 29, 2008 | 1999 Chevrolet Silverado 1500

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