Jump to content

14 Sierra 5.3 ltr Stalls, Low Speed, Idle, Turning??

sourdough44
 Share

Recommended Posts

Tomcuschieri New Member

Tomcuschieri

Posted
Posted
On 5/29/2020 at 5:07 AM, Ozer said:

I 'll update mine:

I was inthe same boat, nothing was working and after the first incident it happened again, this time going 60+ in evening commute on a 4 lane highway and of course i was on the left lane.

The truck just cut off, lights and all, i had to coast to the right lane and my 2 yr old was in the truck. Scary situation.

What fixed the issue for me was me adding a ground cable from NEG battery to the ground bolt next to the brake booster. This basically gives you a second ground cable and no issues since.

 

Tomcuschieri New Member

Tomcuschieri

Posted
Posted
On 5/29/2020 at 5:07 AM, Ozer said:

I 'll update mine:

I was inthe same boat, nothing was working and after the first incident it happened again, this time going 60+ in evening commute on a 4 lane highway and of course i was on the left lane.

The truck just cut off, lights and all, i had to coast to the right lane and my 2 yr old was in the truck. Scary situation.

What fixed the issue for me was me adding a ground cable from NEG battery to the ground bolt next to the brake booster. This basically gives you a second ground cable and no issues since.

 

Tomcuschieri New Member

Tomcuschieri

Posted
Posted

So my 2014 just started doing this as well. While driving about 2plus hours the dash lights and stereo began to flicker then went out briefly then went back on. Then my headlights began to flicker and dim. Stopped at a friends house and after a few minutes my car truck would not start back up. It’s a 2014 silverado. 

  • 3 weeks later...
Ozer Enthusiast

Ozer

Posted
Posted
So my 2014 just started doing this as well. While driving about 2plus hours the dash lights and stereo began to flicker then went out briefly then went back on. Then my headlights began to flicker and dim. Stopped at a friends house and after a few minutes my car truck would not start back up. It’s a 2014 silverado. 
Change your battery if it's the original one. Mine lasted 3yr. Check your body to engine grounds. I added another ground from neg battery to the firewall.

Sent from my SM-N960U using Tapatalk

flyingfool Senior Enthusiast

flyingfool

Posted
Posted (edited)

i would say you have a dying battery ...use your scan tool to data log the battery , with everything on , hot and load the steering full lock.  you can also drive the truck for 10 minutes in tow haul mode this increases the charge rate voltage to the battery from the Alt.  you next xmas present https://www.mechman.com/alternators/cadillac/escalade/6-2l/2014-2018/high-output-370-amp-black-billet-alternator-for-14-18-gm-silverado-sierra-suburban-tahoe-escalade/

 

 

is your idle at 500rpm or lower?  i get light surging sometimes but no stalling,  my 6.0 and 5.3 trucks are at 500 rpm , i feel this is a bit too low, should be 650rpm 750 with all lights on and AC and steeering wheel full lock, , might have to get a tuner to bump this up .

Edited by flyingfool
  • 4 months later...
Billd425 New Member

Billd425

Posted
Posted

My 2018 Silverado Z71 Crew would stall after a long highway run, in front of my house when backing into driveway. Steering wheel would pull out of my hand, radio would change stations, dash display would change from INFO to radio/audio and sometimes would get the "roll down then up drivers window" message. 

 

Didn't feel like taking dashboard apart, but did check the battery connections. All red/Positive connections were tight as can be, BUT the NEGATIVE BATTERY Connection was so loose, could spin the cable on the post with little effort. After tightening the neg battery clamp, haven't had the issue since (looking for wood to knock on) 

 

Hope everyone else's problem is this simple. Good luck to everyone!

  • 1 year later...
Driggs New Member

Driggs

Posted
Posted

2014 GMC Sierra with same issue. So far has been in a parking lot and turning right at a green light. Took it to a GMC service center. They replaced the alternator because they said it was putting out “too much” power. That a thing? Never heard of it. $1600 for diagnostics and replacement (which is including the extended warranty “coverage”).
Well it’s been 2 weeks and it did it again. So I spent $1600 AT A GMC SERVICE CENTER to accomplish zero and put this safety hazard back on the road. Unhappy is a bit of an understatement. If you want something done right… go to the forums and figure it out yourself, I guess.

  • Sad 1
MikeBMW Senior Enthusiast

MikeBMW

Posted
Posted (edited)
15 hours ago, Driggs said:

They replaced the alternator because they said it was putting out “too much” power. That a thing?

Maybe with a bad alternator? But, as you mentioned, I've never heard of that, as well.
I swapped my alternator which, stock, is 150 Amps, with a 250 Amp Mechman alternator, no issues and faster charging on my 2 mile daily to work and home drives.
Doesn't seem to be putting out "too much power." The charging system only requests what it needs. A little extra doesn't hurt but I have a lot of additions and the old 150 Amp alternator (though still perfectly fine) just wasn't keeping up on these daily short drives. (battery tested etc, etc.)
Regarding the main topic, I have no experience in that as I have never encountered such.

Edited by MikeBMW
  • Like 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • James Beyer
      Trading 7.3 (Godzilla) for G.M.C gas

      By James Beyer · Posted

      Congratulations Isttype, on your gmc. Really like my 2024 2500hd sle doublecab now with 85,500 miles.  I checked the oil today at 4800 miles since last oil change and barely reading on the stick.  I don't care if GM says it's Acceptable adding a quart every 2000 miles because that is 100% BS, It is not a 1966 Harley Shovelhead! Sounds like it's setting up a future failure like I had with my 1500 6.2l. Other than oil consumption problems, I really like the 6.6l gas and 10 speed is really nice.  Towed a light 4000 pound trailer last week and averaged 14 mpg.  I was pretty impressive that a 7300 pound gas truck did 14mpg towing, Later-
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      Long Term Cold Cycle Limited Testing   Back to the 1990's and XOM's million mile test. Since then there have been others and there will be more. Schaeffer's, AMSOIL to name two. Of these Schaeffer's is the stand alone which I will explain in a bit later.    http://papers.sae.org/600190/:   http://papers.sae.org/850215/:   Up to 75% of  engine wear occurs on cold starts. These two links (above) provide the technical reasons for engine wear. In a nut shell, and by a large margin, cylinder wear is what takes out most motors and even with a pre-oiling system that part of the engine is dry enough on cold starts and cold warm up to pierce Stribeck.   So when you put a motor, or a car, on a dyno for a million miles stopping only for oil changes, (yes fuel is uninterrupted) or break down maintenance, you are depriving the test of the most important part of it's wear cycle. Yes a million is then a pretty easy walk even for a mineral oil under those conditions.    How about cleanliness during the long test cycles? Same thing. Varnishes that stick rings and insulate parts are laid down by repetitive 'heat cycles'. It's the cool down the precipitates the varnishes. These long runs also hinder acidic attack caused by cold start richness and less than optimal cold start ring sealing. They hinder water formation and enhance breathing of the crankcase; the petri dish of acid formation, the first step in sludge formation, amalgamation and precipitation. These motors are also monitored and controlled for water and oil temperatures to within the "normal operating range".      https://www.swri.org/sites/default/files/sequence-iiih-test.pdf Note the test sequence in some boutique oils literature for testing, API IIIH, is not the standard used for the ILSAC G7 testing. Does that mean it is irrelevant? No, not as used. As used as a 'visual guide' it makes it's point. The G7 weighted piston deposit minimum is lower.      Back to Schaeffer's. That was a cyclical test of an engine in fleet service and not a dyno mule and if you saw the video it was not mirror clean but wear was low.    There are oils like BioSyn and other 'Renewable" source oils that taught cleanliness and have proven themselves in fleet testing. Havoline an other example.    The newest ILSAC G-7 test prioritize cleanliness, LSPI mitigation and fuel economy OVER WEAR. In comparison Porsche C30 Specification Verses ILSAC G-7 Specification below:      Some will balk that this graph isn't apples to apples and I will challenge that in that this graph represent the SPECIFICATION and not the any One Oil Performance.   It is absolutely possible to minimize wear, maximize cleanliness and mitigate LSPI etc., It just isn't cheap and currently I see none that are not walking toward profit over performance.     
    • asilverblazer
      Intermittent no-code issues on 2022.5+ V8 trucks — what did the shop fail to capture?

      By asilverblazer · Posted

      I don't think you will need a split, separate product, etc., the OBD port should be able to deliver everything you need. Since your device would be plugged into it all the time, it wouldn't miss anything.    Hardware in this case will be the easiest part of your project - ELM 327 devices will already deliver all the data you need. Reporting/software is where your advantage/marketability is.
    • Coastie05
      2027 GMC Sierra: Official Discussion

      By Coastie05 · Posted

      I do too. I’ll never be stuck again 😂
    • KARNUT
      2027 GMC Sierra: Official Discussion

      By KARNUT · Posted

      It has happened to me a few times. I carry a jumpstart-tire inflator with me.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...