Cracked motor mount
2012 Sierra, 6.2, tow package. Recently completed a trip to/from BC/Denver Co, pulling a fairly small (4000 lbs loaded) travel trailer. Have done this trip a few times in the past. Usually under 65...
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I drove a 2011 Silverado at work that had the 4.8 in it, it's left motor mount broke. When accelerating from a stop there would be a thump, more felt than heard.
