Comtemplating 08 Hybrid, 80k miles

Discussion in 'Hybrid General Discussion' started by NateDiggity, Jul 9, 2018.

  1. NateDiggity

    NateDiggity Member

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    As my wife and I search for a new to us vehicle after her beloved Hyundai veracruz was totalled by an 18 year old I am constantly unimpressed with what is available in our price range....

    Then, I found a 08 Yukon denali hybrid with the 6.0.

    I have owned 3 different LS engine trucks, an 8.1, duramax and a 07 Yukon XL Denali. I like GM (as you can tell) and I really like the look of this yukon I'm looking at.

    With all that said, I don't know much about the hybrids, I have looked up in the last few hours about them, and it looks like absolute worst case scenario I would have to replace a battery pack at a touch over 2,000 bucks... is that accurate?

    My 07 6.2 had issues, but I traded it at 175k so the miles were high. I replaced the pickup tube o-ring, oil pressure sensor (what a PITA), had a bad backup sensor, really all the typical GM stuff. I also work at a family business with 15 GM 01-new trucks, and currently drive a 2012 6.0 2500hd with 205k miles on it, and have another 06 with 260k that drives 200 miles each day. I know what to expect gas engine wise.

    What do I need to look for specifically on the hybrids?

    Is there any way to "check the health" of the battery pack? I have a cheap 0bd2 scan tool as well as the torque lite app on my phone, I can upgrade that to the paid version if needed (I used this a lot to monitor oil pressure on the 07 denali with the o-ring issue digitally)

    I have an Associates in Electronic Technology from YEARS ago that I do not use (forgot most of it lol) but I am far from electronically dumb....

    Other than that I think I can check everything else out myself, although I am really turned off by the no spare tire..... ugh
     
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  2. iamdub

    iamdub I'm 'onna hafta spank youuuuu!

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    I don't see the point of the hybrid. I know it's better MPG (EPA estimated 7 MPG city, 2 MPG highway over the non-hybrid), but is it so much better that it'll save you more than the cost of a replacement battery pack over the time/mileage you plan to own the vehicle? If you need to dump 2-3 grand soon after buying it, it'll take quite a while just to break even on the fuel savings. Even longer if you do more highway driving than city commuting. Then again, those MPG figures are EPA estimates and real world results may (usually will) vary. There's a reason GM dropped the program.

    My advice is to pass on it. But, to answer your battery health question, you can see what the PCM says with a Tech2. MAYBE some one-way scan tools ("code readers") can see this info, but a Tech2 can for sure.
     
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  3. swathdiver

    swathdiver Full Access Member

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    We've had two guys on here in the past year and both had problems with AFM with theirs. Remember that one guy Chris with the mechanic situation? That was a nightmare but that guy didn't know anything about cars and was taken for a couple of rides! One also needed the transmission rebuilt, none that I recall mentioned the battery pack.

    You could look for a XFE model Tahoe or Yukon, these got about 1 mpg more than the regular trucks. Or look for a 2WD truck with a 3.08 gear if mileage is that important. A good tune will also increase mileage some.

    Depending on where you live and availability, Ethanol usually costs less to run than gasoline and when it comes down to it, how much it costs to drive per mile has more of an affect on our wallets than how many miles per gallon we get when FlexFuel is involved.

    With all those GM cars y'all should have a Tech2 in your tool box.
     
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  4. iamdub

    iamdub I'm 'onna hafta spank youuuuu!

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    I was reminded of that whole mess just as I read the OP's post! I wonder whatever happened with that...

    I just looked up the XFE. It gets it's extra 1 MPG from 3.08 rear gear (bleh!), lowered suspension (looks minimal- maybe 1"?), standard alloy wheels, aluminum suspension parts (lower control arms, I'm sure) and an aluminum spare. This intrigues me because I swear I lost 1-2 average MPG since I lifted/leveled mine. So I should expect to gain that back and possibly more when I drop it ~3/4.

    Anyway, not to get off topic: I'm betting that the battery loses it's capacity over time as is inherent with rechargeable batteries. But, isn't so critical because the vehicle still has the gas engine to power it. It's just that, as the battery loses it's capacity, the vehicle simply runs on the electrical system less and less, effectively slowly transitioning it to more of a gas-only vehicle. So, a used hybrid (assuming the battery isn't so fresh) would get even less of the EPA estimated MPG right outta the gate.
     
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  5. TeaSpoon

    TeaSpoon TYF Newbie

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    I was looking for a hybrid Yukon a year ago and in my research I found a lot of guys who had oil consumption issues. If I remember correctly, the later model years addressed this issue from 2011-2013. 2008-2010 has the issues. I believe the same went for the AFM issues too. Somewhere in there they changed transmission gearing too, more gears, better mpg and also less problems. I know those are broad statements, but it gives you some more to research. I like to go through carcomplaints.com and look up the nhtsa reported issues and if there was a recall or fix attached to it, it’s a great site.
    I’ve had two hybrids so far (non gm) and they’ve been worth it. Besides better mpg, they’ve been quicker out of the gate with the electric motors assisting the gas engine I’ve and had less problems than the same models without hybrid engines (due to the Atkinson cycle they run on). I didn’t buy the hybrid Yukon only because I decided I wanted a suburban.
    Hope this helps!


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  6. dszx13

    dszx13 Full Access Member

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    I had a 09 Sierra hybrid for 4 years. I sold it 2 months ago. Parts are getting harder and more expensive to find. I loved it though. Still hate myself for letting it go but my wallet will thank me

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