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To change the crank sensor on a 1989 Buick Reatta with the 3800 engine, first, disconnect the negative battery cable to ensure safety. Locate the crankshaft position sensor, which is typically found near the crankshaft pulley at the front of the engine. Remove the wiring harness connector and the mounting bolt to take out the old sensor. Install the new sensor by reversing the removal steps, ensuring it is securely fastened and the connector is properly attached before reconnecting the battery.

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2mo ago

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