I've read about the issues. It sounds like something to avoid.
What year did the Tahoe/Suburban get it. Does it carry through to the current modules.
I've read about the issues. It sounds like something to avoid.
What year did the Tahoe/Suburban get it. Does it carry through to the current modules.
Tahoes got it around 2007 & I don't believe it has gone away to date...
Change the oil really, really regularly with really good oil, and they are fine...
I hadn't heard about any of the issues
In reply to Streetwiseguy :
Does that mean more frequently, or precisely at the intervals recommended by GM?
All Gen4 5.3’s have it, which means 06-07.
Typically, 70k is the limit before problems creep in. I swapped my ‘12 burb at 70k with a lifter and cam swap, my ‘13 av has 87k on it but as soon as I bought it at 35k, I tuned out dod/afm.
I have found most times, you have a lifter tick to a knock when the lifters fail.
DoD has continued onto the EcoTec3 4.3L V6 and 5.3L V8 in the '14 trucks. Honestly, the '14+ engines seem to be much more troublesome than the '07-'13 system. I've had lifters shear in half on '14+ with as low as 20k miles.
My brother had one of those trucks and loved the extra milage.
I work in auto parts. I sell more DoD lifters than all others combined. granted I usually sell them to people that I have to point out the oil dipstick to.
In reply to Appleseed :
Depends on whether you use Mobil 1 or Walmart low test. The failures I see are often lube related, I think.
I think GM made it so poorly so then guys could 'justify' putting a big choppy cam in their family hauler to 'fix it for good'.
first thing I thought when I saw title.....
V8,6,4..... burrrrrrrrrrr
As a counter point to all the doom and gloom about the failures on the DoD engines, I have a 2012 Silverado with the 5.3 that I have owned since new. I'm currently at 240K, with at least 15K miles of towing and have experienced no issues. I have ran Mobil 1 since about 1K miles on the odometer with a change internal of roughly 9000 miles, determined by oil testing at Blackstone. My co-worker had the exact same truck that he traded off at 160K with no issues either.
The DoD lifters fail fairly commonly. Call any local shop and ask how often they replace or delete them.
My father just bought a V6-4 Silvo (2018 MY) and is fairly religious about oil changes. So we'll see how long they last. I suspect they'll trade the truck in before 100k miles, though- it's their long-distance cruiser (since no one makes an old-fashioned B-O-F sedan with a huge trunk anymore) for retirement.
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