The 2001 uses a cam poition sensor, to monitor and adjust timing accordingly. The sensor is right on top of the engine, about dead center, and just slightly to the left. It has a single 10mm bolt holding it in. It has a wire harness attached to it too.
Here is a picture to help you find it. It is item #3 in the diagram.
http://i37.tinypic.com/ay3h3b.jpg
On a 2001 Chevrolet Impala : Both the 3.4 and the 3.8 litre V6 engines have a timing CHAIN
The 2001 Chevrolet Suburban is equipped with one knock sensor. The knock sensor will be attached to the back of the engine.
Chevy Metro 2001 (1.3 L) has a timing belt - hard driving conditions require its replacement at 60,000 miles, otherwise the timing belt replacement is scheduled for 100,000 miles.
where is the cam sensor located on a 2001 silverado ?
It is in the timing cover, just behind the balancer. 1 bolt holds it in.
there is no timing belt sensor, only camshaft position sensors and crankshaft position sensor.
The 2.2 and 2.4 litre four cylinder engines in a 2001 Chevrolet Cavalier have a timing CHAIN
The camshaft sensor on a 2001 Chevrolet Venture is located behind the rear bearing cap. It monitors the rotation of the camshaft and updates the computer constantly.
The 2001 Chevy Cavalier IAT sensor can be found on the right side of the transmission. The sensor will be near the front of the transmission.
The 2001 Chevrolet Monte Carlo 3.4 liter V6 engine has a timing CHAIN
Located in the fuel tank may have to remove for access
The 3.4 liter V6 engine in a 2001 Chevrolet Impala has a timing CHAIN