I have lost the rest of what little respect I had left for "gm"

Any issues with 2015 Gm 5.3 or 6.2?
I’m shopping a used truck and it’s scary trying to avoid a disaster.

 

When I worked at Chrysler I replaced numerous sets of lifters and 1 cam. What a mess.
Now they lift the cab off the chassis.
It was right before I left the business.
So much of my final years was warranty nightmares.
Did a bunch of ring and pinions self destructing by loosening pinion nuts.
Wow.
I forgot how much crap my last 5 years were like.
My favorite part was
We can’t give this work to the kids. It’s too much and many will quit.
When I was a kid I dis all the heavy. At the end I returned. Then left.
Hope I find a good used nice pick up.

 

Not always..2003 Dakota 4.7/5 speed manual original owner here and have never had any issues with the engine, rear end or any kind of electrical issues with 141,000 miles.

Then again its basically a stripper compared to all the garbage they put in them nowadays.

My theory has always been the more garbage they put in them the more their is to tear up.

 

“Book” time is .8 hrs. I would go somewhere else. Many times you can drop the bumper cover down a little to get the headlight asm out.

 

After reading all the bad review's & dealer service on the GM's.
I went with the Toyota tundra TRD 4x4 in 2017, no problems and can pull 9700lbs.

 

I cannot speak for the truck but the 2016 suburban 4x4 we had was great. It had the 5.3 which I think is the same drivetrain as the truck. The only recall on it was for a seat belt and it got good mileage on the highway loaded down.. We got another 2020 suburban 4x4 with the 5.3 was very temped to get the 6.2 but did not want to run premium gas all the time.

 

We purchased a 2020 GMC Acadia for my wife last August. 3.6L, AWD. The auto start-stop has quit working and the dealer can't figure it out, I don't mind it does not work but a brand new vehicle, everything should work. It has also developed a low grumble/drone sound when idling ( in park and in gear) and it goes away if you bring the RPM up 500 RPMs, dealer said this is normal. We have had it 6 months, 3500 miles and I am not impressed.

I have a 2020 Sierra lease that has been ok so far, only 3500 miles. Previously I leased a 2015 and 2017 Silverado with no issues but never went over 30K miles on any of them.

 

Why of course. All vehicles have trouble, so pick your poison. Those years had DOD lifter issues, injector issues and trans issues. Find a low-mileage one, service the trans and don't go over 6K miles or less than 50% on the oil monitor and use full synthetic oil. I certainly would not say "don't buy" like I told anyone who would listen regarding Ford trucks from like 1996-2011.

 

I just hit 100,000 miles on my '14 Sierra 5.3L. No major engine problems yet, knock on wood.

However, I did just have the dealer replace the rotting oil cooler lines and leaking A/C lines coming out of the compressor. Not long after that the cluster gave me a low oil warning message. I put a quart of oil in it but have not driven it since I put the oil in. Almost eight bucks a quart for 0W-20 "dexos" whatever that is. Also it was low on coolant so I topped that off. I found a good sized coolant wet spot underneath the front of where I park it but haven't determined where it's coming from yet. The outside of the water pump and radiator hoses are dry. I hope this doesn't turn out to be something major.

 

I wouldn’t own anything with the Displacement On Demand (DOD) or the other cylinder de-activation features. They are very prone to failures even with proper maintenance.

 

Mother Chevrolet put a new engine ( Well pistons rings and such ) in our 2012 Avalanche, after a 'low oil event'. Turns out the DOD was well known for fouling the oil control rings leading to high oil consumption....
That along with a defective PCV System....
I told the dealer 'Why would I even open the hood on a car with 24,000 miles?!
They also put in Chevrolet's 'fix' kit. Seems to be fine now..
I sure am happy with my 2017 Colorado!!

 

Yes it’s crazy how many lifter failures GM has had with the DOD. Also interesting is that a cam swap and DOD delete can add a solid 40 HP without any loss in torque. I do them often for people in my town. I’ve seen a 50 wheel Hp gain with a 5.3 using a BTR stage 2 cam and tune.

 

Hmmmm...
Not that I have the time, but tell me more!!

 

If the DOD lifter is still functional, I believe people are able to remove the intake and pin them, then tune them out. Easier and cheaper than cam job.

 

I was able to do this with mine and afterward installed the Range device to prevent it from activating again. Knock on wood it’s still good...
Patrick

 

Same here. Went with a 2021 SR5 Tundra Crewmax before they make changes!

 

I have a 2013 Nissan Titan and other than standard brake jobs, oil changes and wheel bearings I've not had to do anything to it and it's never let me down. It hauls my fully loaded trailer everyday without issue. It's got 128K kms and counting. One tiny spot of rust starting on the bottom tailgate lip that's it, not bad for being in salt belt Ontario Canada. I know most of you guys dont like foreign vehicles but hey it has the big 3 American beat by the sounds of it lol.

 

Mike the start stop problem could be a wire harness issue. This has popped up on a number of the 9 speed transmissions. My 2018 Traverse had the same issue and was fixed with a harness change.

 

Torque converters and you must cancel GM fuel management. Google it and you'll see...

 

I swore off GM many years ago. they haven't build a good looking car since the 80s. I did have a 16 Impala limited. That was actually a great car, awesome MPG. My son however endoed it. I had a 04 Denali that was a good truck. rode great, great power. Wouldn't take a new GM if someone paid me too. My 2020 Ford Ranger Lariat FX4 is fantastic. Not one lick of problems, Yet.

I've had mostly Fords for since 2001 only one I wound up hating was the 14 Explorer. What a POS. It wasn't an Explorer. Ive had 8 Explorers, 6 Focus' (Foci?) and 7 panther platform( Crown Vic, Town car, Grand Marq) Had one Jeep.

Tim