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jwroch posted a topic in 2014-2019 Engine, Driveline, & ExhaustI have a 2014 Silverado LTZ, with a 5.3L engine. There is approximately 145,000 miles on the engine. I have a misfire on the #3 cylinder. I have replaced the induction coil on the #3 cylinder, but I still have a misfire on this cylinder. My mechanic says that the lobe on the camshaft is worn and the camshaft needs to be replaced. I would think that if the lobe on the camshaft is bad then other lobes would also be bad, a defective camshaft. Has anyone else had this problem? Does anyone have any suggestions as to what might be causing the misfire. Thank you in advance for any advise the you can provide. Julian.