* Determine the precise timing for fuel injection and ignition: The CKP tells the computer exactly when each cylinder is at the top of its compression stroke, ensuring the fuel/air mixture is ignited at the optimal moment. Incorrect timing leads to misfires, poor performance, and potentially engine damage.
* Monitor engine speed: The computer uses the CKP's signal to determine the engine's RPM (revolutions per minute). This is essential for controlling various aspects of engine operation, like fuel delivery and transmission shifting.
* Identify engine starting problems: A faulty CKP can prevent the engine from starting. The computer needs this signal to know when to initiate the ignition sequence.
In short, the CKP is a vital component for the proper operation of your 1997 Ford Explorer V6's engine. A malfunctioning CKP will almost certainly cause significant drivability problems.
