Where is a knock sensor on 01 Chevy silverado 4.8?

There are two knock sensors on a 2001 Chevy Silverado 4.8L engine. They are located on the engine block, just below the cylinder heads. One sensor is located on the front of the engine, near the oil filter. The other sensor is located on the rear of the engine, near the transmission.

Here are step-by-step instructions on how to find the knock sensors on a 2001 Chevy Silverado 4.8L engine:

1. Open the hood of the truck.

2. Locate the engine block. It is the large metal block in the center of the engine compartment.

3. Look for the two knock sensors. They are small, cylindrical sensors with a single wire coming out of them.

4. The front knock sensor is located on the front of the engine, near the oil filter.

5. The rear knock sensor is located on the rear of the engine, near the transmission.