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  1. H

    Lifter Tick

    Same here on 2015...standard BTR AFM delete kit, tune, fluids, etc. maybe $1300 all in...my own labor "free" of course.
  2. H

    [SOLVED] 2015 Tahoe L83 P219B and P0306

    SOLVED. Just to followup, I did pull the intake and was greeted immediately with obvious blow-by staining from the #6 injector hole. The injector itself may well have been fine, but the teflon seals for the injector in the head most definitely were not. My guess is I had damaged them on...
  3. H

    [SOLVED] 2015 Tahoe L83 P219B and P0306

    Thanks for the feedback, I appreciate it. I should have clarified, I have scanned and monitored all 8 cylinders, counts of 0-2 misfires on all cylinders except #6...which gets into the 100s over a drive cycle. I am leaning toward the #6 iinjector, but dreading the job of pulling those...
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    [SOLVED] 2015 Tahoe L83 P219B and P0306

    2015 Tahoe, 5.3, 215Kmi. Did the full DOD delete myself at around 200K (BTR cam/lifter kit plus retune), all running like new up until about two weeks ago. Getting a random (but becoming more frequent) CEL with 219B and 0306. I have swapped coil, plug, wire between cylinders, but misfire stays...
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    Another 5.3 AFM Dead Lifter Issue - Help Me Decide What to Do

    I did the entire DOD delete a couple months ago on my 15 Tahoe, I re-used the fuel lines without issue. Has been running perfect since doing the work. Wasn't "fun", but labor cost of $0 was hard to beat!
  6. H

    P0301 and 0300 Codes

    Agreed with all! Especially the fender liners, which I should have mentioned in my writeup...I did remove the passenger side liner, and it does help quite a bit with access on that side. Takes no time at all to remove. Quite a few things can be done from that area when creative with various...
  7. H

    Misfire & Carbon deposit help

    That was the same cyl/valve that failed on mine in thread below..."P0301 and 0300 codes." The repair ain't fun, but do-able in the home garage if you're inclined.
  8. H

    New member here trying to decide if I should delete the AFM or not. Engine is currently apart.

    Sure was...other than the lifter collapsing, engine was running perfect. Was just the single lifter collapse, zero marks on rollers or cam, factory crosshatch still plainly visible on cyl walls. I was really shocked how clean everything was inside, believe these are extremely robust engines...
  9. H

    New member here trying to decide if I should delete the AFM or not. Engine is currently apart.

    Having just completed mine over the past weekend (with 200K miles, lifter failure), I can't imagine not doing the delete if you're already disassembled. Just do it and never worry about it again.
  10. H

    P0301 and 0300 Codes

    Thanks I appreciate that! I've been wrenching on my own cars for 35+ years now...so it wasn't too technically challenging, but I'm not as young as I used to be...sure glad it's done though!
  11. H

    P0301 and 0300 Codes

    FINAL UPDATE. Got it all back together over the weekend, had to wait until Mon AM to get fresh oil/filter/coolant. Filled 'er all up, put fuel pump fuse back in, and did a few rounds of pedal-to-the-floor turning engine over to get the oil circulated. Took one last look around the engine bay...
  12. H

    P0301 and 0300 Codes

    UPDATE. As expected, nothing about this has been overly complicated, but it is an extremely tedious and uncomfortable job with engine in. Already plenty of good step-by-step videos out there. 100% do-able, it just sucks...would be exponentially easier if I was 6'2", or GM had moved the engine...
  13. H

    P0301 and 0300 Codes

    Thanks...I'll probably just reinstall my real GMs anyway...but will make a point to check fuel trims (along with all available data) right away when back up and running. Would like to see if I can squeeze another 150K or so miles out of this after the delete. Up to 380K on my '05 Z71...4...
  14. H

    P0301 and 0300 Codes

    Thanks, I'm not sure how fun it will be, but plenty do-able. I did likely get fakes, but I did save the old GM ones...and all of the old and new injectors seem to be working just fine. Pretty much half torn down at this point, UPS man just brought a big box of parts from BTR...will see about...
  15. H

    P0301 and 0300 Codes

    Following up on this...I did remove the drivers side valve cover to check rockers. Zero movement on cyl 1 (not sure if it's intake or exhaust yet, doesn't much matter at this point, but it's the second lifter from the front). Never made a bit of noise... Gonna start teardown this weekend...
  16. H

    P0301 and 0300 Codes

    Thanks for the reply! This was bought used at about 90K maybe 4 yrs ago. Agreed on plug maintenance, that's on me... Will get full capability scan after valve operation is checked under rocker cover...assuming they are moving properly. Sounds like that is the next step for sure. Fingers...
  17. H

    P0301 and 0300 Codes

    Definitely Cyl 1, I will pull the rocker cover next to check valve movement. Hundreds of misfires on Cyl 1 mode 6, zero misfires anywhere else. Will do on holding onto the old ones, good point on possible fakes...I did buy "allegedly" GM on Amazon. Clearly though at least the other 7 new ones...
  18. H

    P0301 and 0300 Codes

    2015 Tahoe, just turned 200K mi. Upon brisk downshift/accel, flashing CEL and traction came on. This happened once or twice over the last couple years, cleared itself shortly after and ran fine. This time it didn’t clear itself. CEL still flashing while driving, clearly missing/running poorly...
  19. H

    Cooling Fans Running - Temperature Gauge not working - my data, experience and rigged fix.

    I had exactly the same symptoms (15 Tahoe). Replaced temp sensor, but problem resurfaced a couple weeks later. The permanent fix was a new thermostat....didn't realize until replacing that I was never really coming up to full temp (gauge straight up), it had always been running on the cool...
  20. H

    2015 Yukon SLT temp gauge at 0 and radiator fan running constantly

    I had exactly the same symptoms (15 Tahoe). Replaced temp sensor, but problem resurfaced a couple weeks later. The permanent fix was a new thermostat....didn't realize until replacing that I was never really coming up to full temp (gauge straight up), it had always been running on the cool...
  21. H

    2015 Tahoe No AC after Battery Replaced

    Appreciate the reply, that's exactly the sort of thing I was expecting/afraid of, but had no idea to what/where to check. Will keep an eye out for other replies and look into that, thanks!
  22. H

    2015 Tahoe No AC after Battery Replaced

    Also- this is a 134a system (not sure when change to 1234 was)
  23. H

    2015 Tahoe No AC after Battery Replaced

    2015 Tahoe, had to replace old battery that would no longer hold charge. After the battery replacement, AC no longer working (was working 100% prior to battery swap). Things I have already checked/done: -AC compressor clutch is engaging and staying engaged -I have a manifold gauge set, static...

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