I would not buy a Tech2 unless you have a time machine to go back to 2014 went they went obsolete. Note that you still have all of the AFM/DOD components from your OP. The disabling has just been overridden in software but you still have AFM lifters and camshaft. My gut tells me that a plug...
I drive an '08 Yukon XL Denali with the L92 6.2L. Same 6L80E transmission. I have 140K miles and bet that at least 20% of that is either towing a 5,800 lbs boat or a 6 x 12 enclosed trailer which has a wind drag making the Denali work harder than towing the boat. I am pure stock and have...
This has happened to me 3 times in the past 5 weeks. Glad I found this thread. I have the '08 L92 6.2L. Each time would be towing in about 81-83F temp and come to idle at a stop. First time I was on the interstate... in rush hour... in a construction zone (and stop and go for a mile) against...
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