Instead, the crankshaft position sensor (CKP sensor) and the distributor itself provide the necessary information about engine timing to the engine control module (ECM). The distributor contains the camshaft position sensor function within it. If you're having issues with engine timing or starting problems, the problem may lie with:
* The crankshaft position sensor (CKP): This sensor is often located near the crankshaft pulley.
* The distributor itself: This is a more complex component; a faulty distributor can manifest as various problems, including misfires and hard starting. It might require replacement rather than just a sensor change.
* The ignition module (inside or near the distributor): This can also cause similar symptoms.
To diagnose the problem accurately, you'll need to:
1. Check for diagnostic trouble codes (DTCs): Use an OBD-II scanner to retrieve any stored codes from the ECM. This will point you towards the likely culprit.
2. Inspect the distributor: Check the distributor cap, rotor, and ignition wires for any damage or wear.
3. Test the crankshaft position sensor: This usually involves checking the sensor's voltage output with a multimeter.
4. Consult a repair manual: A repair manual specific to your 1997 Chevrolet Venture will provide detailed diagrams and diagnostic procedures.
Since the system is distributor-based, focusing on the distributor and CKP sensor will be more productive than searching for a separate camshaft position sensor. A mechanic with experience working on older vehicles would be best equipped to diagnose and repair the issue.
