2020 chevy trail boss

Top it off, the ole Ram throws a cel and service air filter message that morning as well after I took it in lieu of the Trail Lemon.
I was like now what. Figured something failed and last month I finally reinstalled the OE airbox and Ram air guts in lieu of the bdhaf that the original owner had on it.
Turned out was just the arm that operates the Ram air flappy doodles in the air box had popped off effectively closing both inlets into the airbox making the truck think the air filter was plugged.
All good took 10 minutes to fix and clear codes. Nice job Ram. Everything works as designed even 6 years almost 100k miles and deleted emissions and tuned ecm.
Chevy , kiss my @ss! Lol.

First update, second bank of lifters went in, in Dec. Seems to be fine.
Second update, the Trail Lemon left my driveway on a rollback on Thursday.
Piece of sht, that truck is. Almost enough to make me like Ford! (Jk not likely in this lifetime, lol).
Here’s the story. Drove home from Spokane Wed night. 300mi , 4 hours , 1 tank of gas. No problemo.
Next morning. Randomly I decided to remote start it because the key was in my pocket and not laying in the truck where I usually leave it.
Got outside truck had died and took 2 attempts to start. Crank for a long time before firing.
Immediately ESC disabled, reduced power message and cel. Reduced power was accurate. Wouldn’t go much over 40 even when I matted the skinny pedal.
Parked it called our eq guy and he sent a wrecker.
Now here’s the stranger part. Truck got to dealer and supposedly runs perfect, no lights, NO codes , no issues!
What a pile! Maybe they’ll lemon it! Haha wishful thinking. But I’d probably end up with one with a missing computer chip!

Welp the old Trail Boss is headed back in for surgery again. Dunno which cylinders are affected. Presume the side they didn’t replace lifters on.
Twice in a month. Sure wish I’d gotten 16 lifters and not 8 new ones the last time around.

Thunderbolt wrote:


My coworkers 2021 5.3 just came back from the dealer with the same issue and had all the lifters replaced. His dash lights all lit up like a Christmas tree as well.

They only did 1 bank, complete. 2 collapsed lifters on the same bank.
Read a TSB dunno if it's the most recent one, that trucks under 8000 miles get ALL lifters replaced if even 1 collapses. Over 8k miles and just the affected bank is replaced.
I would have preferred all of them replaced, presuming the updated ones aren't defective.

Grit dog wrote:

enblethen wrote:
I recently saw an article indicating 5.3 engines have a lifter issue. There is suppose to be a service bulletin on the issue. Free repairs!

And the 6.2s apparently, from doing some light reading on why my truck might have pooped the bed yesterday...

My coworkers 2021 5.3 just came back from the dealer with the same issue and had all the lifters replaced. His dash lights all lit up like a Christmas tree as well.

Lots of really vague information in this thread, and no one knows how to look up towing capacity in the owners manual? Accurate numbers certainly aren't going to be found in generic lists on the Internet.

Your owners manual has several pages listing all possible cab, gear, 4wd/2wd, engine, and trim configurations and their respective towing capacities. In my 2016 Silverado manual it starts on page 333. You'll need to know your gear ratio which you can find in your RPO code list. That's found in your glove box, it's a QR code for 2018 and newer (used to be a printed sticker).

enblethen wrote:
I recently saw an article indicating 5.3 engines have a lifter issue. There is suppose to be a service bulletin on the issue. Free repairs!

And the 6.2s apparently, from doing some light reading on why my truck might have pooped the bed yesterday...

My 2019 5.3 towing 6,000 lbs can accelerate up any 7% grade here in Az with no problem. My 93 suburban 5.7 could hardly maintain 35 mph on the same hill and my 2002 5.3 had to hit first gear but this 2019 5.3 8 speed is a towing beast for a small engine.

I recently saw an article indicating 5.3 engines have a lifter issue. There is suppose to be a service bulletin on the issue. Free repairs!

3 pages of replies and the last post that had anything to do with the OPs question was post #6 on the first page....
I'm guilty of starting the ball rolling downhill based on part of a previous comment that also had nothing to do with the original question as an apples to oranges comparison.

If we were in confession, I am part of the problem....lol