PCM updates - Truck Forums


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Old 02-16-2010, 12:37 PM
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Default PCM updates

Just wondering everyone's opinion on how important it is to do the PCM transmission and transfer case updates as recommended by the dealership? I have an 06 Chev Silverado 1500 Max (HD). What do these updates do?
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Old 02-16-2010, 09:28 PM
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They just hook up their computers to ur truck and install updates. Runs about $120 i believe. Takes a few hours.
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