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  1. bdbull

    RESOLVED - Stripped out the cylinder head bolt hole while replacing valve cover, what now?

    Murphy's law strikes again. Was out doing the valve cover replacement on my 2010 Avalanche. Job is a breeze. Putting the new valve cover on and the two middle bolts literally stripped the threads out of the cylinder head. WTF?!?! How in the world does that happen? When I took the cover...
  2. bdbull

    HVAC mode blend door actuator not working properly

    2010 Avalanche - I can't get the mode on my heat/ac to change anymore. No matter where I set it (feet, defrost, upper vents) it doesn't really change. I got down and looked at the blend door actuator and think it's malfunctioning. When looking at it while changing the mode, I can see it turn...
  3. bdbull

    Plugs dirty after 800 miles

    Went into town today and the temp got up to a normal range. It was right at 210 on the gauge and the Torque app had it right around 194. Just checked my coolant and it appears to be a little low. I wonder if I have a coolant leak and that's what's causing the plugs to get dirty. I've...
  4. bdbull

    Plugs dirty after 800 miles

    Just ran some errands around town with the Torque app running. Fuel trim values seemed to stay in the +/- 10% range, although there were a few times I noticed it outside of that range. Fuel economy hasn't seemed to change at all. It's got a little over 213k miles on it, and most of my driving...
  5. bdbull

    Plugs dirty after 800 miles

    I have not looked at this. Honestly, I'm not sure what it is. :) I will see if I can view it in the Torque app. I did not gap the plugs, but I did check them all before installing. There were all at .04. I did not replace the wires this time, but they were replaced with the last set of...
  6. bdbull

    Plugs dirty after 800 miles

    These are AC Delco 41-110 Iridiums from RockAuto. I think the plugs I had with the original rough idle issue may have been counterfeit as I got them off Amazon. In that thread someone suggested buying from RockAuto this time so I avoid that issue. That's what I did so these should be genuine...
  7. bdbull

    Plugs dirty after 800 miles

    2010 Avalanche - Had a rough idle problem that was solved with new plugs a while ago, but now I feel like it's coming back after only 800 miles. Pulled a few plugs (1, 2, 3, 7) today to check them out. I could be wrong, but I don't think they're supposed to look like this after 800 miles...
  8. bdbull

    Stumble/Hesitation AND stalling continuation thread

    Didn't realize I never closed out this thread. The new set of plugs cleared up the issue right away. I'm hoping I just got some knockoff plugs from Amazon and that my engine isn't fouling plugs up that bad, that fast. I guess time will tell. Here is what the plugs looked like once I got them...
  9. bdbull

    2015 Tahoe - P0306 and truck shaking badly

    I hope I'm not too premature in reporting this, but I just went out to take a look and the freaking plug wire was completely disconnected from the coil connection. It was just hanging there by the plug connection. If that isn't a gremlin then I don't know what is. Reconnected it and it...
  10. bdbull

    2015 Tahoe - P0306 and truck shaking badly

    Merry Christmas to all! Creeping through a local neighborhood light show last night when all of a sudden the engine started running extremely rough. Truck was shaking and jerking and felt like it was gonna shut off. CEL eventually started flashing and traction control light came on. We were...
  11. bdbull

    Stumble/Hesitation AND stalling continuation thread

    I already ordered them, but thanks anyway. Maybe someone else can use it.
  12. bdbull

    Stumble/Hesitation AND stalling continuation thread

    That's a great idea. Looks like they have a rebate promotion going on too, so they will be even cheaper.
  13. bdbull

    Stumble/Hesitation AND stalling continuation thread

    I think the clicking noise comment was for someone else. I got the plugs from Amazon. Maybe they weren't authentic AC Delco bc if I click on the link in my order history the page doesn't exist anymore. I think I might go with some NGK plugs this time -...
  14. bdbull

    Stumble/Hesitation AND stalling continuation thread

    Just pulled plugs 1, 3, and 5. All three looked awful. The tip was so worn down that they were all gapped over .08. I re-gapped the three I pulled to .04 and put them back in. Started the truck up and it actually ran a little bit better right off the bat. I'm guessing I'll just replace them...
  15. bdbull

    Stumble/Hesitation AND stalling continuation thread

    Possibly made a breakthrough on this issue. Threw two codes today: P0300 and P0301. Threw P0300 at startup and then I'm assuming P0301 was thrown later bc the CEL flashed a few times when I took off from a stop light. Hoping to be able to pull the plugs and take a look at them this weekend.
  16. bdbull

    Oil cooler line bolt or part #?

    Hahaha, I found that one out the hard way. I ended up getting some M6x1x40 bolts from the parts store that seem to work fine. If things change, I'll reach out to you for that spare bolt.
  17. bdbull

    Oil cooler line bolt or part #?

    Replacing my oil pan gasket yesterday and ran into a snag. When attaching the oil cooler lines back to the pan, I managed to shear off one of the bolts. I was able to remove the broken bolt, but now I need to find a replacement and can't figure out a part number or size to look for. It's one...
  18. bdbull

    Do I need to replace my oil pan? (picture inside)

    Thanks for the quick replies and putting me at ease. Gonna clean it up and hopefully get everything put back together today.
  19. bdbull

    Do I need to replace my oil pan? (picture inside)

    Just checking the big 3 parts stores around me, O'Reilly is the only one that looks like they even have a pan in stock...
  20. bdbull

    Stumble/Hesitation AND stalling continuation thread

    I can confirm that this procedure keeps the truck from going into V4 mode, but I'm still having transmission issues. I've kinda put this problem on hold to do the oil pan gasket replacement...which is not fun so far.
  21. bdbull

    Do I need to replace my oil pan? (picture inside)

    I'm doing the dreaded oil pan gasket replacement procedure and have my truck completely torn apart. Now that I finally have the oil pan out, I'm wondering if I should replace it. It looks like it's cracking all over the place. I can definitely feel the cracks, but don't know if that's a...
  22. bdbull

    Stumble/Hesitation AND stalling continuation thread

    I'll give this a shot when I head out this afternoon. Although I'm pretty sure it's the transmission now. I've been watching the DIC the last couple of days and it very rarely goes into V4 mode. In fact, I made a trip all the way across town and back, about 30 miles, and I never saw it hit V4...
  23. bdbull

    Stumble/Hesitation AND stalling continuation thread

    I saw someone else mention this a few days ago so I've been driving with the DIC on that display to see if/when it goes to V4. Honestly, it very rarely ever does it. I've noticed it a few times when coasting downhill, but that's about it. For the hack, do you mean put it in Manual - Gear 5...
  24. bdbull

    Stumble/Hesitation AND stalling continuation thread

    I dropped the pan and did all that about 15k miles ago. I may skip the exchange and just throw the LubeGuard in and see what happens. I've actually just noticed some transmission issues lately. When cruising at about 40 in sixth gear, it seems like it can't figure out if it should downshift...
  25. bdbull

    Stumble/Hesitation AND stalling continuation thread

    So you put the entire 10oz. bottle in? I was thinking of doing an ATF fluid exchange on my truck anyway, so I may throw this in with it.

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