They are screwed into the exhaust system / pipes. Unscrew them and replace.
you have to remove the intake, and there are 2 knock sensors.
Check conections on the o2 sensors . Replace the 02 sensor.
To replace the knock sensors on a 2003 Chevrolet Avalanche with a 5.3L engine, first disconnect the battery and remove the intake manifold to access the sensors located on the engine block. Carefully disconnect the electrical connectors from the old knock sensors and remove them using a socket wrench. Install the new knock sensors, reconnect the electrical connectors, and reassemble the intake manifold. Finally, reconnect the battery and start the engine to ensure proper operation.
In The Seats.
where is the oxygen sensor located on a 1997 Chevrolet lumina
2002 Chevrolet Tahoe has two oxygen sensors How do I check them ?
There are approximately 2 oxygen sensors on a 2005 Chevrolet Astro van. The oxygen sensors can be purchased at stores such as NAPA.
2005 Chevrolet Classic FWD
There are two knock sensors on your engine, and they are underneath the intake manifold. You will have to remove the intake to get to the sensors.
There are 4 sensors on the 1995 Chevrolet Blazer. The 2 front for the Disc Brakes is behind the rotors on the hub. The inside hub has gears and the sensors are above them. On the rear, where you have Drum Brakes, the sensors are on the back of the Drum Brake Assembly, next to the bleeder screws.
Two sensors, and replace them.
The 1991 Chevrolet Astro van may have various sensors such as the oxygen sensor, throttle position sensor, coolant temperature sensor, and mass airflow sensor. These sensors help monitor and adjust various engine functions to optimize performance and efficiency. If you are experiencing issues with your vehicle, it is recommended to have a professional diagnose and replace any faulty sensors.