SOURCE: 2002 Chevy Trailblazer Engine Codes
This is actually an easy swap out. Remove the electrical connection, remove the retaining bolt and pull out old one. I believe the sensor is located in the front passenger side of the engine on this particular model.
SOURCE: Where is the camshaft position sensor located-99 Chevy Lumina 3.1
It's held down by one bolt right above the timing chain cover. It's next to the head that's facing toward the front of the car.
SOURCE: P0340 Code Camshaft Position Sensor
The Camshaft Position (CMP) Sensor detects the position of the camshaft in order to identifiy when piston No. 1 is on its compression stroke. The CMP sensor is used for ignition timing in the Ford DIS igntion system, but not in the EDIS igntion system. Both DIS/EDIS use the CMP signal for synchronizing the firing of sequential fuel injectors.
On the 3.0L vulcan engine, the CMP signal is generated by a single Hall-Effect magnetic switch, activated by a single "vane" spinning around by virture of a synchronized shaft which is driven by the camshaft.
The CMP sensor & synchronizer/shaft are located behind the intake manifold (i.e., back near the firewall on a Ranger) on the top of the cylinder block. If you just need to replace the sensor, it is a simple job of unplugging the electrical connector and removing the screws holding the sensor in place. Here is a sketch of the sensor to give you an idea what to look for:
SOURCE: locate camshaft sensor 2002 chevy trailblazer
Assuming you have a 4.2L engine here is the location.
Hope this helps out,
if so please rate my answers.
Brett
SOURCE: p0014 engine code
THE CAM SHAFT ACTUATOR IS LOCATED IN THE CYLINDER HEAD ON THE FRONT RIGHT HAND SIDE JUST ABOVE THE POWER STEERING PUMP. AFTER YOU REMOVE THE ACTUATOR CHECK TO SEE IF ANY OF THE SCREENS ARE DAMAGED OR MISSING. IF SO REPLACE THE ACTUATOR. ALSO CHECK THE CRANKSHAFT END PLAY. IT SHOULD BE BETWEEN 0.0044" - 0.0153". if excessive crankshaft end play is causing this concern, it will be obviously out of specification by as much as.050" or more when a pry bar is used to move the crankshaft back and forth. IF THIS IS THE CASE AN ENGINE REPLACEMENT IS RECOMMENDED DUE TO THE AMOUNT OF DEBRIS IN THE ENGINE. IF NO EXCESSIVE CRANKSHAFT MOVEMENT NOTICED REPLACE THE CAM ACTUATOR. IT WILL ALSO BE NECESSARY TO DO AN OIL CHANGE.
A camshaft position sensor,or cylinder identification sensor is used to determin the engine cycle position the information is used to provide individual cylinder ignition and injection cotrol.Many engine mangement systems use an inductive type of sensor that is located near the camshaft;when the camshaft rotates a single signal is passed to the ECU to indicate a reference point in the engine cycle
The Crankshaft position sensor is located on the left rear of the engine block below the starter. it has an oval connector and is held in place by one bolt. See picture of sensor below (some models has a 45 degree connector, most are straight like the one pictured below.
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