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LZ4 crankshaft position sensor

Were is it
The crankshaft position sensor for the 3.5 liter motor (LZ4) in the 2008 Impala is on the backside (firewall side) of the motor, just above the oil pan. I've changed one of these on the similar 3.4L motor, and it's tricky to get at, but do-able.

I've attached a couple pics from the factory service manual.

HTH.

Doug

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