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They help control spark knock and the damage they can do.
That all depends what sensors need replacing
snac ecm for codes then using code data you can determine which sensor kbutlrtech@yahoo.com
Brake pads have audible wear tabs that make a screeching noise when the pads need replacing, some luxury cars(all bmws) have sensors that let you know when they need replacing.
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
There's no need to replace knock sensors, and there was never a 3.6 engine.
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.
you cant need to do sencors to sorry
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.
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...
What do you need to know ?
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.