One problem related to engine burning oil has been reported for the 2009 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 GMC Sierra 1500 based on all problems reported for the 2009 Sierra 1500.
I have the engine with active fuel management and as I was driving down the instate the engine goes in to failure mode. Lifter collapsed tearing the cam up as well. Spent about 3000 dollars having issue fixed with new gm parts only to have it fail again. Called gm and they said they were aware of the problem but it's from faulty parts and it was the customers problem. The engine smokes bad and burns oil and raw gas sits on the piston without being burned off properly.