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You need to buy a Haynes Repair manual.
To replace the knock sensor, you need to remove the antifreeze from the engine.
You need to disconnect the battery.
You need to remove the alternator and the air box. ( You actually dont need to remove the alternator seeing as I did it with out taking the alternator off)
You need to remove the fuel injection and the air intake manifold.
Under the manifold there is a inspection plate that has two wires going into it.
You will need to replace both sensors and both wiring harnesses that goes to the sensors.
You will need a new intake manifold gasket and a torque wrench that is in INCH POUNDS - not foot pounds to torque the intake manifold.
You will need to permetex the valley around the knock sensors to divert the water away from the knock sensors.
Connect all the wires to the proper terminals and replace the anti freeze if it is more then 3 years old with a Universal antifreeze.
Reconnect the battery wire and you should be good to go.
What else can I help you with?
Where is the anti-knock sensor on a 2003 Chevy Avalanche?
you mean knock sensor
How do you do a diagnostic test on a knock sensor circuit for a 2005 Chevy Avalanche 1500 car?
You can run a diagnostic test for the knock sensor, on your 2005 Chevy avalanche, by hooking the engine up to a diagnostic tester.
Where is the knock sensor located on 2005 Chevy Avalanche?
There are two knock sensors, they are both located under the upper intake manifold.
How do you change the knock sensor on a 2003 Chevy Avalanche?
That engine has 2 of them and you MUST remove the intake manifold to service the knock sensors.
Diagram for the location of a knock sensor on a 2002 Chevy Tahoe.?
2003 chevy tahoe knock sensor
Where do you find the knock sensor in a 1999 Chevy lumina?
Where do you find a knock sensor on 1999 Chevy lumina
Install new knock sensor for a Chevy silverodo 1500?
The 1500 Chevy Silverado has two knock sensors. There is one on each side of the block halfway between front and back.
Where is knock sensor on 2004 avalanche?
under the intake. in the valley. 2 knock sensors actuallly
How do you change the knock sensor in a 2003 Chevy Silverado 5.3?
how do you change the knock sensor in a 2003 Chevy silverado 5.3
What can happen if you install a different knock sensor than called for?
what will happen if you install a knock sensor that isn't called for that make & madel
Where is knock sensor on 1976 Chevy 400?
That year vehicle has a carburetor and does not use a knock sensor.
How do you replace a knock sensor on a 2000 Chevy 6.0 step by step?
how to replace a knock sensor on a 2000 Chevy 6.0 step by step
