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  1. D

    Cold start hesitation

    Cool, thanks for this.
  2. D

    Cold start hesitation

    How did you get it behind the head? It looks like there's zero room. I'm gonna look at the stud on #7 and see if it's broken off in the head or the stud is sticking out so I can wiggle it out with vice grips with the manifold off. Definitely adding it to my to-do list, I just don't want to have...
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    Cold start hesitation

    Just changed plugs and wires, original coils though. I wonder if something like this could be the case. Next time I'm under her I'll track the lines back and look for any spray or leakage. It seems like little things like this tend to be common problems for me, seeing as a new MAF cleared a...
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    Cold start hesitation

    No change in the long crank this morning. I did find out my exhaust manifold is leaking making a loud tick but that's it. ;)
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    Cold start hesitation

    Yes to clarify it's turning over, but not firing so the starter is doing it's job properly. Engine cold but outside temp these days is 85+ so not actually cold. When I was doing all my diagnostic work my scanner saw 69% alcohol content, I'm not sure what E85 actually is at the pump. I will...
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    Cold start hesitation

    Just wanted to bump this to potentially get some more info as to the cause of the issue. Since I've posted this I had a crack in my PCV which caused a lean code, as well as a P0420/P0430. I started noticing a hesitation while driving and even almost stalled. I thought it might be my torque...
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    Audio setup question

    Hey all, I wanted to get some opinions on my sound system and which way I can go to upgrade it. Firstly here's what I have. 400AMP Alternator Big 3 Clarion Marine 5 channel amp (Dunno the specs) Coaxial rear speakers Coaxial front speakers with tweeters+crossovers in stock tweeter...
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    Cold start hesitation

    Yes you are correct, I will edit my original post. I have heard about the ECM reading the alcohol % incorrectly resulting in drivability issues. Let me do a little research and see what's available for the GMT900.
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    Cold start hesitation

    I believe I've figured out my issue but I wanted to get a second opinion and also create a thread for future reference for others with the same issue. Vehicle: 2007 Suburban LT, 5.3L, 2WD Flex Fuel Problem: Delayed start when cold. Truck always starts, and idles afterwards, and will fire first...
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    2WD to AWD Conversion 07

    Great to know, thank you!
  11. D

    2WD to AWD Conversion 07

    No worries man! I appreciate your input on the output shaft and trans info which definitely points me in the right direction. I'm going to do my homework on the T-cases and trans compatibility and see what makes the most sense. I'm hoping I'd just need a custom input shaft with the right splines...
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    2WD to AWD Conversion 07

    He was on Powerstroke tv I think as well where they did another AWD conversion on a Silverado. This video only centers on the transfer case and changing the input shaft. I don't believe he talks about the 4L80 and what's been done to it.
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    2WD to AWD Conversion 07

    Okay this leaves me with a couple of questions. The 4L60E AWD transfer case from the GMT800 is the NV149, which should bolt up to the 27 spline no problem. The AWD transfer case from the GMT900 is the 4485, that has the 32 spline input shaft for the 4L80. LT on youtube did a 4L80 trans swap on...
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    2WD to AWD Conversion 07

    Yes you did say that, but it was a specific year no? I have the 5.3 Flex. I figured something would have to change to work with the transfer case. I'd rather modify the transfer case input shaft than touch the 4L60. Looks a million times easier to rebuild. Interesting about the blocks and...
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    2WD to AWD Conversion 07

    I honestly do as well. I've driven in snow for years with RWD. The LSD makes a huge difference, and can do most normal things. I'm just thinking down the road, knowing I have the capability would open a ton of possibilities of use for my Burb. Here's the thing about the Denali's and Esky's. As...
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    2WD to AWD Conversion 07

    They're $500 used, but don't the Denali's come with the 6.2's? Looks like a 6L80, not sure the compatibility of the splines on the input shaft. I bet it's the same with the Esky's as well. Hmm....
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    2WD to AWD Conversion 07

    The issue is I do not want 4WD. Full time AWD. Why is that? Off the top of my head looking at numbers, we're looking at about the same cost as a supercharger. It's also about the same amount of work... Okay let me find out what the transfer case number is. Yes. A purely mechanical 60/40...
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    2WD to AWD Conversion 07

    Is it a true AWD or the part-time 4WD with the axle disconnect?
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    2WD to AWD Conversion 07

    I've been doing research on doing an AWD conversion on my '07 Suburban. So far there hasn't been any clear answers or a process for the GMT900 series SUV's although I'm sure it's almost identical to the GMT800. I hate the traction the RWD has with A/T's even in the rain so I'm going to put an...
  20. D

    Cold start hesistation

    Update: Got the battery and alternator tested at autozone and they read okay. Today I was driving and the engine died, steering went stiff and I heard a loud screeching noise for about 5 seconds. Pulled over to the side of the road, tried to start it and it'd die almost immediately, very rough...
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    Cold start hesistation

    Coolio, I'll give that a go tomorrow, thanks.
  22. D

    Cold start hesistation

    Just bought a used 07 burb with 144k on the clock. 5.3L flex fuel. Truck started and drove perfectly fine but about 3 days ago ive noticed it struggling to turn over after resting for awhile. Once cranked over it starts fine and drives fine. Here are the things that have changed since i bought...
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    Bazooka BOSE sub replacement, center console

    Yeah I was thinking the rearward portion has more room than the front/cupholder part.
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    Bazooka BOSE sub replacement, center console

    I'm finally gutting my bose sound system in my truck. I have a 10" sub that I was going to build a custom box in the 00-02 location on my truck, but I was looking around and I found this guy right here. https://www.crutchfield.com/p_204BT6DVC/Bazooka-BT6024DVC.html I did some measuring with...
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    Motor mount, slip yoke or Diff? Clunk!

    Interesting, I'll see if I can get that done, but I'll probably start at the yoke/diff first as the more I drive the truck and the timing of the thuds is making me think the yoke. The new mount I put on is stiffer than the OE and I notice the transmission shifting more, as well as more vibration...

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