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My 2013 Yukon XL Project

Alright I’ve got 7/8 monitoring tests complete. Waiting on evap test. From some reading it sounds like this one can be a doozy. But I’ve also seen where CA will pass the emissions test even if this has not completed. I’d be shocked if that’s true but I’ll try to find out tomorrow.
 
Well it passed with the Evap monitoring test still pending. apparently as long as all the others have passed with no DTC's and that one test is pending (not failed) then it will pass. Heading out of town this Weeknd but I'll be tuning AFM out of it as soon as I get back. then figuring out what I'm going to do next.
 
And Just for the record it had a bunch of little things that needed attention that I've taken care of:
- Rear defroster glass tab broken off (repaired with permatex kit)
- door panel lock rattle (tesa fuzzy tape on back side kept them from rattling)
- rear window glass release button (new button)
- front windshield cowl trim around hood hinges (rubber all dried out and broken out of it)
- both rear door window switches would roll down but not roll up (driver could roll them up) -- new switches fixed the problem
- Greased all door latches and hinges
- greased middle row folding seat mech hinges
- treated all rubber weatherstripping


After driving it for last few days or so I made a note of a few things that still need addressing:
- new struts/shocks front/rear
- new license plate bulb
- front side marker bulb
- rear side marker bulbs
- drain and refill Tcase, Trans, F/R Diff fluids
- flush power steering fluid
- cerakote treatment for all black trim
- cerakote treatment for headlight and taillight housings
- touch up a couple chips on the bumpers

All in all pretty minor stuff. Just some general maintenance and cleaning and a few worn out pieces that needed to be replaced. other than that it'll be a pretty good runner once the AFM garbage is removed. Back at it next week.
 
I know it’s been minute since I updated this — our summer got really busy.
But I still have it and it’s still running good. I’ve got about 1200 miles on it since releasing the collapsed lifter. I do notice a very slight tick at times and a slight shudder at idle in gear. But I think it just needs a bit more driving with some good fuel and oil to clean it up. It’s definitely better than it was early on. We used it as a people shuttle this past weekend for my sisters wedding. It cleaned up real nice.

A couple weeks back I got all the fluids changed (trans/filter, f/r diffs, Tcase, power steering, bled brakes) and changed front struts and rear shocks. Trans fluid was pretty dark and decent amount of clutch material on the magnet but no metal flakes that I could see. As far as I know the trans is all original with 185k miles. I’m a bit concerned about it but it shifts fine and feels ok, just hear a lot about the crappy torque converter and how they programmed the lockup TCC. I’m planning to tune the TCM to not lock the torque converter in gears 1-4. Also change the slip to 0 rpm for gears 5 and 6. Also planning to do an oil change and try the valvoline restore & protect oil this time to see if it helps with the slight tick.
 
so i got the oil changed (running Valvoline Restore & Protect 5w-30) hoping this will help clean up the last bit of whatever’s in there.
Also got the tcm programmed with the TCC lockup removed in 1-4 and set slip to 0 in 5th and 6th. so far seems fine. shifting is still good. a bit more rpm’s between shifts but it helps the engine feel like it has more consistent acceleration vs the stock programming. i’ll keep driving it.
My DZLburb popped a power steering line the other day so this has become my daily driver for now — I was just searching for pricing to see what they were selling for and then the power steering pumps out all the fluid in the street so maybe this is God’s way of telling me to not sell it yet? haha. oh well. we’ll keep putting miles on it for now.


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Still driving this rig mostly. Got my DZLburb back together unfortunately I'm having trouble trusting it with the power steering line issues. but thankfully no towing duties needed for now, just a lot of people moving duties, so this 2013 has been a perfect rig for that job. got about 2k miles on the current oil (about 3200 miles since releasing the lifter). still has a bit of a flutter at idle occasionally but seems a bit better lately. I'll probably change the oil in the next 500 miles and keep driving it for now.

it's got a few more rattles now that the weather has gotten a bit colder (for CA standards). I'll see if I can address those. No real other updates on it for now.
 
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