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Technically, in order for the engine to run, the knock sensor is not required. However, it is definetly recommended to have the knock sensor on each bank in and operating properly. The reason for this is because the knock sensor senses and improper vibrations of the cylinder or piston in the cylinder wall. If any improper vibrations are occurring from improper fuel/air combustion, e.g. too rich, too lean, too much or not enough compression, etc., then the knock sensor measures the imperfection, and tells the PCM or ECM how to correct the issue. If the knock sensor is not installed and working, then such conditions cannot be measured. Sure, the engine will still run, but if the piston and cylinder begin to wear improperly in the cylinder wall, or any other issue needs to be corrected, your car will be unable to regulate these things in whichever bank the problems are occurring. Keep them both working!
Hope this helps!
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∙ 12y ago
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Where is the Knock sensor on a 2001 1500 5.3 V8 Silverado Located and is there a specific way to change it?
There are two knock sensors on a 2001 Chevy 1500 with the 5.3 V8. You have to remove the intake manifold, because both of them are located under it. it is best to replace both knock sensors at one time, and you will need an intake manifold gasket too. There are two knock sensors on a 2001 Chevy 1500 with the 5.3 V8. You have to remove the intake manifold, because both of them are located under it. it is best to replace both knock sensors at one time, and you will need an intake manifold gasket too.
Do you really need knock sensors?
They help control spark knock and the damage they can do.
How change knock sensor of Chevy Avalanche?
In order to change either or both of the Knock Sensors, you must first remove the wire connections. The sensors are physically located directly underneath the intake plenum. You will need a metal tool to remove the fuel lines also. Needle nose pliers may be needed to extract them. You will need to use some sort of sealant on the new sensors.
How do you install the knock sensor on a 2002 Chevy Avalanche?
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.
Knock sensor location on a 2003 GMC Yukon?
on the engine block drivers side of intake the knock sensors are just like the fuel pumps on the tahoe's sooner or later they will go bad. You will need 2 knock sensors, the harness and gaskets
How do you replace a knock sensor on a mercury villager estate 3.6 engine?
There's no need to replace knock sensors, and there was never a 3.6 engine.
Is there two sensors on a 1999 jeep grand cherokee with a v8?
there are sensors all over the car you need to be more specific
How do you change the knock sensors in a 1999 Chevy 1500 5.3 liter silverado?
you will need to remove the engine cover fuel rails and intake manifold unscrew the 2 knock sensors screw the new ones in and replace the manifold and fuel rails good to go...
Where is the knock sensor loction on a 2005 Chevy silviarodo 5 3 L 1500 ton?
That engine has 2 knock sensors. They are UNDERNEITH the INTAKE MANIFOLD. You will need to remove the intake to even see them and to service them.
How do you in stall knock sensors?
Need more information Like Year,Engine size and what it is in. That would let us help answer your question alot better.
Are both o2 sensors on the 2005 trailblazer the same?
Need to know which engine it has.
How do you change the knock sensor in a 2000 suburban?
The knock sensor (depending on engine) can reside either above the starter, or under the intake manifold. 5.7L and 7.4L knock sensors reside above the starter, passenger side of the engine. Exercise caution when removing them, as they're also blocking the water/coolant block drain on that side. 5.3L, 6.0L engines have two knock sensors under the intake manifold--so you'd need to remove the intake manifold to access them.
