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High Mileage Club for the 5.3 and 6.2

Bamacommander
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BossTaco2020 Enthusiast

BossTaco2020

Posted
Posted
39 minutes ago, SuperOldSchool said:

Isn’t this a high mileage thread?

 

Why are folks just posting their current  mileage, being well under even 100k?

 

my 2015 XL Denali has 117k on it.  Trans was replaced at 14k , so it alone has about 100k on it.

 

 

You're in the wrong sub-forum buddy. This is for 2019-21 Silverados, which is why the mileage is so low.

 

My 2020 stock TrailBoss LT w/ 5.3L & 10Spd has 35K trouble-free miles. Nothing wrong with the truck at all, only had it in for oil-changes and tire rotation. Looking forward to getting it over 100K miles and seeing how it compares to my old 2012 F150 Ecoturd that was in bad shape at that many miles.

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KARNUT
KARNUT

Just type in your little browser problem years for GM. Lifter and transmission problems are well represented. Even some class action lawsuits. So it’s not all peachy. I joined the website in 2014 beca

The Raven
The Raven

Not correct.  As shown in that link, I asked YOU for a source.  You replied by asking me for a source, without providing one yourself.  That's why I replied "no source".

lennybg
lennybg

Along with eating crow, I was given a GOLD Malibu as a loaner.

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  • 6 months later...
11bravoZ71 Enthusiast

11bravoZ71

Posted
Posted (edited)

2019 z71 5.3L 8l90 

 

new transmission valve body at 59k miles. 
Serpentine belt and pulley both failed at around 30k
 

current mileage is 73k miles 

Superchips Tuned DFM OFF.
doesn't burn oil anymore after DFM shut off. 

8l90 thermostat deleted. 
Amsoil Fluids bumper to bumper expect engine oil. Because I change it every 5k. 

 

Drives and shifts better new at 73k miles. Weird. Expect for the occasional clunk I get when going into REVERSE from any gear since 0 miles. Maybe the driveshaft needs lube idk.

Edited by 11bravoZ71
Gangly Senior Enthusiast

Gangly

Posted
Posted

Now at 82k miles on my 2020 5.3.  On my third belt, but other than that no major engine issues.

Kevin0311 Enthusiast

Kevin0311

Posted
Posted

Had 64K on 19 6.2 HC, oil cooler line leak, muffler rattle and the 7 or 8 recalls it had but no lifter/motor issue.  Always made noise at startup when cold motor from day one, new 23 6.2 has yet to make that noise.

1454 Enthusiast

1454

Posted
Posted
On 2/20/2022 at 7:41 PM, 1454 said:

How many until failure? Or just how many miles currently? 

 

No failure (knock on wood), 22,500 miles, 2021 6.2. Purchased last March/April. 

30,800 miles, cylinder 7 lifter decided to commit suicide. 

 

Spoke too soon. Does anyone know if there are higher quality aftermarket replacements? God knows I don't want to deal with this again. 

Kgordo1 New Member

Kgordo1

Posted
Posted

19 High Country 6.2. Almost 81k miles. Nothing major so far. Replaced oil coolant lines last winter. Otherwise it’s been great fingers crossed

  • 1 year later...
Trail Manager Enthusiast

Trail Manager

Posted
Posted (edited)

Started out with a 2019 5.3 8 speed. Belt and pulley at 50k, traded at 77k. Upgraded to a 2022 LTD LT 4x4  5.3 with the 8 speed, lifted 2 inches with Fox 2.0’s and 35” KO2’s. Belt and pulley out at 54k. Now has 80,465 miles and one of the TPMS sensors is out. Truck is driven 2-400 miles a day and goes to Hidden Falls Adventure park, Big Bend, and the National Sea Shore. Hoping to see 125k out of her. 

IMG_0505.jpeg

GPTempDownload.jpeg

Edited by Trail Manager
AJMBLAZER Enthusiast

AJMBLAZER

Posted
Posted
On 1/19/2023 at 2:12 PM, AJMBLAZER said:

80,000 miles. Running great. 

102,****** miles.  This spring summer I'm going to change out all the fluids.  Otherwise running great.

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Trail Manager Enthusiast

Trail Manager

Posted
Posted
11 minutes ago, AJMBLAZER said:

102,****** miles.  This spring summer I'm going to change out all the fluids.  Otherwise running great.

What year and engine?

AJMBLAZER Enthusiast

AJMBLAZER

Posted
Posted
40 minutes ago, Trail Manager said:

What year and engine?

2019 Chevy Silverado 1500 LT Z71 4x4 crew cab, 5.3L, 8 spd. 2" lift Bilstein 5100's, LT275/70R18 Cooper Discoverer AT2 XLT's.

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