Jump to content

Rough idle when coming to stop

2015Z71

By 2015Z71
in Troubleshooting & Recalls

Recommended Posts

2015Z71 Enthusiast

2015Z71

Posted
Posted

Just picked up my 2016 Silverado cc z71 with 5.3l and have noticed the engine has a rough idle when coming to a stop. Or when I'm at idle and am using the brakes. Anyone else have this issue. My truck has 104 miles.

 

 

Sent from my iPhone using Tapatalk

  • Replies 176
  • Created
  • Last Reply
Vic15 Enthusiast

Vic15

Posted
Posted

Check for a loose spark plug wire...

Brianibew Enthusiast

Brianibew

Posted
Posted

It's most likely not broken, just a characteristic of the 5.3 GDI engine. They all do it to some extent, some being worse than others. It almost feels like a miss at times. I tried different grades of gas and techron and nothing really made a difference. Dealer said they have had multiple complaints on the same problem when I brought it up to them. There is no fix according to the dealer. Others on this forum have installed a tuner and bumped the idle RPM up a little and smoothed it out. Next time your at a stop and its idling rough, give it just a little bit of gas and I bet it will disappear.

2015Z71 Enthusiast

2015Z71

Posted
  • Author
Posted

I will take it in and have the service department look at it. It has already had the onstar module replaced. I drove a loaner for 2 months and it never did this.

 

 

Sent from my iPhone using Tapatalk

hirdlej Enthusiast

hirdlej

Posted
Posted

It's most likely not broken, just a characteristic of the 5.3 GDI engine. They all do it to some extent, some being worse than others. It almost feels like a miss at times. I tried different grades of gas and techron and nothing really made a difference. Dealer said they have had multiple complaints on the same problem when I brought it up to them. There is no fix according to the dealer. Others on this forum have installed a tuner and bumped the idle RPM up a little and smoothed it out. Next time your at a stop and its idling rough, give it just a little bit of gas and I bet it will disappear.

This couldn't be further from the truth. My 2015 idles so smooth that I cannot even feel it running. That's one of my favorite things about this truck. There's no sensation of an engine running at all hardly, coupled with the super quiet exhaust. It's very comfortable to drive long distances that way and not fatiguing.

2015Z71 Enthusiast

2015Z71

Posted
  • Author
Posted

Yeah like I said the 2016 double cab the dealer have me for two months never did this. So I will be taking it in next week.

 

 

Sent from my iPhone using Tapatalk

jamesonjc Enthusiast

jamesonjc

Posted
Posted

should idle smooth - I would use it for at least 1000 miles before bringing it in. Run it HARD to break it in in that time as well. Imean full throttle to seat the rings and lots of stop and go with full throttle intervals

harveyfamily Enthusiast

harveyfamily

Posted
Posted

Mine shakes some while at a stop but in gear. The tach is just below 500. Very annoying and I've had passengers ask me about it.

 

I took it into service when I had the first oil change and all the advisor told me was to get used to it as its normal.

 

 

Sent from my iPhone using Tapatalk

darkfox1 Senior Enthusiast

darkfox1

Posted
Posted

Are you me?

 

You just described exactly what I'm having AND I had to drive a loaner for the last 2 months that didn't do this at all. :lol:

 

Yea.. try this out though, mine will idle rough (like.. omg is this thing going to stall out?) rough in DRIVE and ONLY when warm. If its cold, no problem, if its rolling, even a little bit? no problem, reverse? no problem. ONLY drive.

 

Is that that what you're seeing?

 

You should see the water bottle I keep in my cup holder. It's a trip.

 

If its nothing actually WRONG.. I can put up with this, my concern is that there's some component thats gonna blow at 60,001 miles and put me like $20k in the hole for a new engine.

HondaHawkGT Senior Enthusiast

HondaHawkGT

Posted
Posted

Putting it in drive changes the load on the engine changes. The ECU changes a lot of parameters in response.

 

Your engine isn't about to blow up. 75% of the vehicles I've ever owned have had a vibration at warm idle, especially while in drive. Honda is wrapped up in a rough idle 'controversy' right now.

 

http://www.thecarconnection.com/news/1098900_rough-idle-complaints-roll-in-for-2015-cr-v-honda-working-on-fix

 

http://forums.edmunds.com/discussion/31321/honda/cr-v/vibration-issue-with-2015-honda-cr-v

Brianibew Enthusiast

Brianibew

Posted
Posted

This couldn't be further from the truth. My 2015 idles so smooth that I cannot even feel it running. That's one of my favorite things about this truck. There's no sensation of an engine running at all hardly, coupled with the super quiet exhaust. It's very comfortable to drive long distances that way and not fatiguing.

 

What could not be farther from the truth? Open your eyes and look around on the forums for this very issue. It is a common issue with the 5.3 GDI platforms. One "fix" GM has come up with, is to install small washers between the engine mounts and the frame, and if you have read, most have claimed it does not fix the issue. Chalk it up to yet another quality control issue that GM cannot solve due to the amount of poor designed variables involved.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,962
    Total Members
    8,960
    Most Online
    contrabombarde
    Newest Member
    contrabombarde
    Joined

  • Who's Online   4 Members, 0 Anonymous, 1,344 Guests (See full list)

  • Latest Articles

  • Posts

    • richard wysong
      Needing this part.

      By richard wysong · Posted

      Still looks like a rivet to me in the pics, I don't see a nut and none of the pics show the head of the screw. But if you says so.....
    • jgaudet99
      Tire psi

      By jgaudet99 · Posted

      Thanks for all the help so far!   I did try right from 2026 right down to 2021, and only from 2023 down lets me select the option for tire psi change, but I get the vehicle not supported error!   I'll definitely try it under Chevrolet after work today, and I'll get the sensor number from gm for my truck tire sensors. And I'll let you know if it works for me under Chevrolet!   And if that doesn't work, I'm going to guess that what @Atlas said about maybe I have a different body control module could be true!  
    • Jsdirt
      2010 Avalanche 5.3 not running correctly after engine swap.

      By Jsdirt · Posted

      From where I'm sitting this sounds like a compatibility problem. I'm assuming the 2007 was a 900-series truck, and not an 800-series (they were sold side-by-side in dealerships that model year), since it starts and runs.   This is why I HATE post-2006 vehicles. Everything becomes a huge problem when you try to keep the thing running for longer than the manufacturer has designed it to.    I can't remember when Global-A architecture started - either '10 or '11. For your sake, you had better hope it's '11, or you're going to be spending some BIG money to correct this cluster-eff. That's something you need to find out before doing anything else. You may have several computers bricked ... but the fact that it runs tells me you MIGHT be ok here.     EDIT: Just did a quick refresher. You're screwed. This is Global-A. The 2 systems are NOT compatible in the slightest. Once you get the correct engine in there that IS compatible, you're going to need to see how many computers are locked. Absolute NIGHTMARE to straighten out, too. Your buddy might be better off cutting his losses and finding something else.   Welcome to post-2006 vehicle electronics. This is why I quit the industry, and drive nothing built after 1994. This stuff takes all the fun out of wrenching!  
    • bwiese
      Show Us Your 2019 & Up T1 Pictures !

      By bwiese · Posted

      Recently acquired new 2026 Silv. 1500 WT  - L3B + 4WD,  std cab + std bed, in (duh!) Sierra White. Upgrades: replaced 'steelies' w/  Vision "Flow" black alloys,  17x8.5"; HDX nerf bar w/steps (black powdercoat); Weatherguard large/deep alloy saddle toolbox; Michelin fitted bedmat (sale, perfect fit) Weathertech door sill guards TBD: rear wheebox liners 4x black fender arch trim - searching for best  (Putco: chrome only; not looking for flares either!) -Bill    
    • Chuck FB
      Tire psi

      By Chuck FB · Posted

      True, hard to say what differences there may or may not be between Chev and GM as well as a production year or mid year part change either.    I just found it odd that under the Sierra choice on the Autel that many of the last few years of production year did not include the choice of changing the tire pressure but if that is an Autel thing or a GM thing as to why the choices were not there. Knowing what tpms sensors are on the truck should give some guidance into which choices on the tool even make sense to try as I wouldn't give up just yet with the tool but I guess he will see what if anything he comes up with if he finds out a bit more info and tries a few more things on the Autel. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...