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how to remove crankshaft position sensor from 91 Buick Regal
Crankshaft position and crankshaft RPM
should be by balancer
should be right around the crankshaft. Look for a plug into something around the crankshaft.
There isn't one. It only has a dual vane crankshaft position sensor.
The crankshaft position sensor is located at the front of the engine close to the crankshaft damper
CRANKSHAFT POSITION SENSOR The crankshaft sensor is located on the passengers side of the transmission housing, above the differential housing Crankshaft Position Sensor The bottom of the sensor sits above the drive plate REMOVAL Disconnect electrical connector from crankshaft position sensor. Remove sensor mounting screw. Remove sensor. INSTALLATION Install sensor and push sensor down until contact is made with the transmission case. While holding the sensor in this position, install and tighten the retaining bolt to 12 N·m (105 in. lbs.) torque. Connect electrical connector to crankshaft position sensor.
Remove the engine brush cover under the front of the engine. Remove the drive belt to make changing the sensor easier (optional). Remove the lower timing belt cover and the crankshaft pulley to access the crankshaft position sensor. Disconnect the electrical modules from the crankshaft position sensor, located next to the alternator. Take off the bolts with a socket wrench and remove the sensor.
That should be at the front of the engine by the crankshaft pulley / harmonic balancer
Press off the balancer .
The crankshaft position sensor is located right above the starter, you may have to remove the starter for better visibility.
Crank position sensor is located next to the crankshaft. In order to replace it you might have to remove the timing belt. In the most models you just can remove remove the timing belt cover and replace the sensor.