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2000 gmc sierra VSS wire...


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VSS is a dark green wire with a white stripe, at the ECM.ECM is located near the battery, down low, between the fender and the fan under the black plastic cover. On the 4.3L, the VSS wire is at pin 3 in the connector labeled black. On the 4.8L, 5.3L, and 6.0L, the VSS wire is located in pin 50 of the red connector. Reverse is most likely a light green wire in the harness inside the driver's frame rail running towards the rear of the truck

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