189000 miles is not high mileage these days. It should run 300000 no big problems. Ive never heard of any common problems with these.

 

Agree. Just doing some last minute homework before going to check it out. Thank you

 

Only issues I had was the AC condenser cracked, but they make a support bracket for the lines which was the cause of it.

149K before I was in an accident that totaled it.

 

This is the only thing that’s holding me from pulling the trigger. I hate rusy

 

my old man drives a 2014 Sierra with the 6.2. It’s a good truck and he hasn’t had any issues other than the rockers like that one. He just had em replaced. Didn’t want to know how much that cost though. 😂

 

When did they start the DOD bullshit?

 

i believe 15 or 16

 

Dod has been around way longer than that. It's a 14 so is it an LS or lt. The lt came out in 14 or 16 can't remember. Wanna say 14.

 

GM's DOD began with the 2005 Chevrolet Blazer with the 5.3 option. First year (I believe) for pickups was the new body style 1/2 ton pickups introduced later in midyear 2007. And beginning with the new body style 2014 Silverado 1500, the 5.3 does indeed have the new direct-injection EcoTec3 engine. We've had a bunch of them and yes, they still have DOD issues as the miles roll up. Be thankful if you catch the problem before it destroys the cam.

OP sez 189K miles....that's getting up there but who can say. We've seen the DOD fail at that level; another (my driver for quite some time) went 330K before it shit the DOD bed sitting at a stoplight....and that truck was meticulously maintained its whole life.

If you get this truck and plan on keeping it longterm, consider a DOD delete.

 

They are highly rated...

https://cars.usnews.com/cars-trucks/chevrolet/silverado-1500/2014

 

5.3 is LT
Transmission issues but you say it was rebuilt last year. So hopefully done right with right parts.
16-7 had injector issues. Never heard it on 014s.
Make sure to change oil and runner cleaner thru intake as it’s direct injection so nothing to clean intake valves.

 

2014??

You're likely getting a Mexican made truck. Check the VIN to be sure it starts with a 1 and not a 3.

3 = Silao Mexico made since ~2011

. I’m familiar with the 99-06 Silerado/Sierra’s, which ran forever.

Really?? I use to think that too
Don't believe the hype.

I'm on my 3rd 5.3L engine in a 00-06 Tahoe.Both predecessor engines failed @ ~125,000 miles which kinda blew my mind.

First was an oil pickup O ring that failed and engine stopped getting oil.

Second got a yard pull from LKQ @100K and it made it to ~125k and cracked a block in winter, shop manager brother was using it.

That forced me to buy a new Reman.
At that point I replaced EVERYTHING in the bay.

 

2014??

You're likely getting a Mexican made truck.

The Mexican made trucks actually have better reliability ratings than the American made trucks. The lazy UAW workers don't care about quality.

I have a 2015 GMC Sierra made in America. Cracked AC condenser and trans replacement at 90K.

 

number one issue is lifter failure. put a towing camshaft in it with ls7 lifters and the DOD delete kit and it will run for 300,000. My dad has had a couple of them and the current one is at about 240,000 miles. when it was apart we did oil pump and timing set just for peace of mind.

 

at that mileage I would want to pull the intake and see how caked up the valves are, can swap on a 6.2 intake and tb while youre at it if youre bored

 

get rid of the DOD and it will run nearly forever . do see oil pump failures from time to time but its rare

 

We’re starting to see a lot of them for transmissions. 100-200k is miles. We put billet cover converters in them all, almost everything trans go makes, turn lockup off in the earlier gears, turn DOD off, target 0 slip, and it’s one of the lowest percentage of comebacks we get.

Couldn’t tell you how many have shown up 3 quarts low on oil and making trash oil pressure, that don’t make a fucking noise. Lol. LS > all

 

They had some trans issues, some had AC problems and a 14 should have AFM.

 

303000 on my 5.3 ls based with dod before I lost a dod lifter. New transmission at 275000. Threw a new set of lifters in it and disabled dod so that they never change states again and off we go. Been a great truck!

 

I love them. one time thought id try a ford and on the test drive it just felt like a real pos. Just disable the v4 crap. i took mine to a tuner. we did have one at work that had a trans issue. you go to pass somebody and it would lose all power then slam into gear and sound like the rear end was about to come though the floor

 

Only thing is the lifters you have to watch out for because of the DOD bullshot. Get a dod delete or a tune

 

I’ve had my 2013 5.3 for a while now, 110k, no issues at all really except normal maintenance, interior door handle broke but I got a good fix on it. 3rd brake light was leaking, some rust on rear 1/4s.
Was towing a trailer w it for a while. Had DOD tuned out years ago.
Cleans up real nice, I have the XLT
Even the leather is holding up real well.

 

Only thing is the lifters you have to watch out for because of the DOD bullshot. Get a dod delete or a tune

It's been over a year and a half since this original post was made,...I'm pretty sure NAeg6 isn't still looking at that truck....lol

 

Lord have mercy....we've caught Old Thread Syndrome again....
Oh well, it all still applies today.

 

Have used ROTELLA T6 in all my LS engines with DOD or not....never have had any problems with any of them....pickup tube o ring on oil pump is a problem....wonder how many cam and lifter failures are due to air in lubrication system caused by that not being replaced at first sign of it going bad.

 

BRAKE LINES! Last night in fact, just sold my sons 07 GMC HD2500 classic work truck to a buddy as it had a blown line and we left it sit were it was parked for about a year. Didn't need the truck anymore. Buddy brings his brothers duramax Chevy, loaded it up and we get down the gravel road and he then says "I cant stop as we rolled out onto the county highway". I told him about 500 ft before we hit the main road , hey you better check those brakes and check that brake controller. That SOB Chevy blew the same brake line as the GMC and pedal went to the floor. Luckily, there was no one coming as we rolled out. Thought he shit his pants. We worked and used the trailer brake controller override to get it off the county highway and back to my shop. loaded the trailer on back of the FORD and hauled it to his house. Going back today to trailer the Chevy back. Truck passed inspection a week ago. I don't know if its the manufactures or the bastards that lay the salt juice down, but something need to be rendered about the bottoms of the cars and trucks rotting from it.

 

Had a 2011 I bought new and I killed it this past fall with a Semi incident while towing. It was a 5.3 with a 6 spd trans. Never a problem, never leaked a drip and was maintained correctly. Had I not killed it I'd have driven it until I died. It had just clicked 80k miles a few days before I wrecked it. Truck was immaculate. Better truck by far than the 2024 I replaced it with. The 2024 is basically Mary Barra's rendition of pzazzzz. Worse mileage than the 2011. WTF?

 

DOD?

 

Same as AFM or active fuel management. Displacement on demand.

 

330,000 on my 2008 5.3 still runs like a top