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To replace the crankshaft sensor on a 1990 Chevy Lumina 3.1 without removing the wheel spray guard, first disconnect the negative battery cable. Then, access the sensor from underneath the vehicle using a socket wrench to remove the mounting bolt. Carefully unplug the electrical connector from the sensor, replace it with the new sensor, and reattach the bolt and connector. Finally, reconnect the battery cable and ensure everything is secure before starting the vehicle.

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6mo ago

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