This may or may not be major or even worth losing a second over sleep. But I cannot for the life of me understand why my 2012 Tahoe LT 5.3 sound like it’s cammed or if it has a performance exhaust. It starts up just fine, there’s no delay in turning the key. I just want to make sure it isn’t a...
Not that it may be related to your issue but I had a brand new 2016 Sierra 5.3l and within months of owning it it did exactly as you described. Most likely a failed Chassis Control Module or Engine Control Module. Also have you changed the plugs lately?
I have the same thing with my 2WD 12’ Tahoe, bought it used at 150k mi mo accidents, reg maintenance. Motor mount has been changed around 110k.
When I press the gas with medium throttle I hear and feel this thump coming from the drivers side. I don’t think it’s the struts, but upon looking at...
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