ford ranger crankshaft sensorA failing sensor can cause intermittent problems: a car may cut out or stall randomly, but then restart with no problems. The engine might have troubles starting in wet weather, but starts OK after. Sometimes you might see the RPM gauge behaving erratically. Some sensors are subject to greater wear and tear than others, and so are more likely to fail over time. The crankshaft position sensor is located in the engine block and is used to tell the ECU the position of the crankshaft relative to the camshaft. It tells the ECU what speed the engine is spinning at, so the ECU can adjust the fuel/air mixture so that the engine runs efficiently and reaches its optimum power output. The crankshaft position sensor is a vital component for the engine to function properly and should be replaced at the first sign of failure to ensure continued safe operation. You can buy from link below – https://www.totalperformance.net.au/ford-351-393-stroker-crankshaft-3.850-forged-4340 Direct Approach – 1800 351 351 or (03) 9362 0266