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Old 02-16-2010, 12:37 PM
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Join Date: Feb 2010
Posts: 2
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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Join Date: May 2009
Location: West Texas
Posts: 1,845

They just hook up their computers to ur truck and install updates. Runs about $120 i believe. Takes a few hours.
That way you'll Learn!!!!
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