Jump to content

2014 rough engine idle

janecka1

By janecka1
in Troubleshooting & Recalls

Recommended Posts

Dnt Senior Enthusiast

Dnt

Posted
Posted

Shimmed 3mm then huh? wow that is like NOT MUCH LOL. Probaly found the mount was lose or something, your engine could have turned upside down right in the engine bay or fallen out right on the road. Good thing you caught this man. Great info on this forum big time saver resource if you an issue and you get the standard oh that is normal for this truck from your dealership.

  • 2 weeks later...
  • Replies 167
  • Created
  • Last Reply
fondupot Senior Enthusiast

fondupot

Posted
Posted

Just dropped my truck at the dealer. There is a bulletin on this vibration issue. I saw some of the paperwork and it said something about re-centering the engine/transmission on the mounts and shim the motor 3mm.

 

So they're gonna work on it. I'll report back after.

 

 

Sent from my iPhone.

WhiteLTZ14 Enthusiast

WhiteLTZ14

Posted
Posted

Just dropped my truck at the dealer. There is a bulletin on this vibration issue. I saw some of the paperwork and it said something about re-centering the engine/transmission on the mounts and shim the motor 3mm.

 

So they're gonna work on it. I'll report back after.

 

 

Sent from my iPhone.

Does your truck have the rough idle when it's been running for a while? My truck does it after it's been running for a while and I come to a stop. Also it does it when there is incline. Did your dealer pull up the bulletin? Thanks

 

Planning on taking it tomorrow morning.

fondupot Senior Enthusiast

fondupot

Posted
Posted

Just dropped my truck at the dealer. There is a bulletin on this vibration issue. I saw some of the paperwork and it said something about re-centering the engine/transmission on the mounts and shim the motor 3mm.

So they're gonna work on it. I'll report back after.

Sent from my iPhone.

Does your truck have the rough idle when it's been running for a while? My truck does it after it's been running for a while and I come to a stop. Also it does it when there is incline. Did your dealer pull up the bulletin? Thanks

Planning on taking it tomorrow morning.

 

 

Yes. The bulletin says it's caused by the motor and transmission not being centered on the mounts correctly. This causing resonance aka vibrations. They need to measure to recenter and then use shims to space the motor mounts 3mm.

 

It's not really that the engine is idling rough. But mine had a vibration when in P, R, N, D. Was more prevalent after the truck was at operating temperature.

 

I forgot to write down the bulletin number. But just take it in to the dealer and ask them to look it up. Luckily, my dealer is very helpful and responsive

 

 

Sent from my iPhone.

WhiteLTZ14 Enthusiast

WhiteLTZ14

Posted
Posted

Yes. The bulletin says it's caused by the motor and transmission not being centered on the mounts correctly. This causing resonance aka vibrations. They need to measure to recenter and then use shims to space the motor mounts 3mm. It's not really that the engine is idling rough. But mine had a vibration when in P, R, N, D. Was more prevalent after the truck was at operating temperature. I forgot to write down the bulletin number. But just take it in to the dealer and ask them to look it up. Luckily, my dealer is very helpful and responsive Sent from my iPhone.

Thanks. At the dealer now said they will take a look at it. Hope they don't give me a hassle. Did you get your truck back the same day?

fondupot Senior Enthusiast

fondupot

Posted
Posted

Yes. The bulletin says it's caused by the motor and transmission not being centered on the mounts correctly. This causing resonance aka vibrations. They need to measure to recenter and then use shims to space the motor mounts 3mm. It's not really that the engine is idling rough. But mine had a vibration when in P, R, N, D. Was more prevalent after the truck was at operating temperature. I forgot to write down the bulletin number. But just take it in to the dealer and ask them to look it up. Luckily, my dealer is very helpful and responsive Sent from my iPhone.

 

Thanks. At the dealer now said they will take a look at it. Hope they don't give me a hassle. Did you get your truck back the same day?

 

 

No. I just dropped it yesterday at 2:00. After about an hour my service writer came and said he wants to give me a loaner. I hope to get the truck back today.

 

 

Sent from my iPhone.

WhiteLTZ14 Enthusiast

WhiteLTZ14

Posted
Posted

No. I just dropped it yesterday at 2:00. After about an hour my service writer came and said he wants to give me a loaner. I hope to get the truck back today.

 

 

Sent from my iPhone.

 

fondupot,

 

Service guy asked me if i was going to wait for it.... that it might be a 3 to 4 hour job. Asked the service guy if he can pull up the bulletin but said only the techs can. So we shall see.

WhiteLTZ14 Enthusiast

WhiteLTZ14

Posted
Posted

yea hopefully I hear back from them today.

Service guy just came in and told me they found the bulletin and have started working on it. Said it will take a little while... so i believe you will get yours today. I'm waiting here on mines so shouldn't take more than 3 or 4 hours i believe.

WhiteLTZ14 Enthusiast

WhiteLTZ14

Posted
Posted

Got the truck back already just under 2 1/2 hours. Got home sat there for a few minutes on the incline and idle wasnt rough. And seems to have fixed the issue. Wont know until later today for sure when i drive it for a while.

beetle Enthusiast

beetle

Posted
Posted

Got the truck back already just under 2 1/2 hours. Got home sat there for a few minutes on the incline and idle wasnt rough. And seems to have fixed the issue. Wont know until later today for sure when i drive it for a while.

 

Did they find anything wrong and what corrective action was taken?

WhiteLTZ14 Enthusiast

WhiteLTZ14

Posted
Posted

 

Did they find anything wrong and what corrective action was taken?

Just went to the dealer and told them that after my truck has been running for a while or reaches normal operating temperature, it idles rough.... i showed them what fondupot posted about the bulletin of the shimming the engine 3mm and they looked up the bulletin. They went ahead and fixed the right side of it engine mounts by shimming 3mm between the engine and the plate??? Ill check when i get home. But ive been driving for awhile now and it seems to have fixed the issue

fondupot Senior Enthusiast

fondupot

Posted
Posted

Got my truck back too.

 

Honestly, feels the exact same when sitting at idle. The motor isn't idling rough, they checked for stored misfire codes, so I guess everything is fine.

 

But they did the bulletin re-centering the trans and motor mounts and shimming the motor mount. Feels exactly the same though.

Archived

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

Go to topic listing

  • Latest Articles

  • Posts

    • Aimatdeer
      Ac not keeping up

      By Aimatdeer · Posted

      2024 l8t . Ac has never felt really cold even new. But lately it seems a little warmer. When it gets in the upper 80s and a little more humid it just does not keep up. And sometimes at idle it gets warm. My wife's 2008 envoy is better. My son's 2016 is colder. I have an apointment for a third try Monday the 29th at a third dealer to try and get cold ac before my warranty is out. The first two told me something about so many degrees under ambient temp blah blah blah seemed like they didn't want to mess with me. This was set at low. Max air fan speed high. 87 degrees and a little humid.   .
    • KARNUT
      OCI, not when but why?

      By KARNUT · Posted

      It isn’t all that bad in the world with purchasing power versus quality. My first car had just basic equipment. My oil choice was conventional oil. The life expectancy was around 100K miles. During that time you could expect to change all the accessories. Today with inflation you can buy the equivalent. It comes fully loaded with 4 doors. The life expectancy passes 100K miles replacing no accessories. If reaching that milestone is your goal you simply follow the recommended service intervals. If you want more miles simply do more maintenance. When in doubt you can check the internet or YouTube for information. The selling of any product hasn’t changed since the beginning of time. The power of the buyer has. The price of the product hasn’t changed much with inflation. The buying public wants more. Competition and the buying public has put the sellers in a box. The greed is on both sides. You can still get more for less. You just have to do with less. That used to be popular. The buying public has changed . It’s the sellers that are trying to keep up. As Grumpy tries to inform the readers in this case with maintenance. If you want more. More effort is required. That information wasn’t available this easily just a few years ago. I believe the public has more power. Getting information is easier.
    • SFC Retired
      2023 DRW Wheel Liners

      By SFC Retired · Posted

      Gentlemen, I'm new to this forum. My question is, I thought I have read somewhere that the rear wheel liners for 2024- 2026 GMC Sierra HD3500 DRW can/will fit the 2023. I can't seem to find that information again and wondering if anybody has any knowledge if these will work or not with the 2023? Part# is 84892542. Thank you for any information. The GMC parts counter wasn't able to give my any definitive answer? 
    • Coastie05
      Looking at ordering a '26 WT because I want a std cab, std bed

      By Coastie05 · Posted

      Spacers aren’t safe anyway, so you’re better off just buying something else.  
    • carkhz316
      OEM Trailer Hitch Receiver - Impact tightened by shop

      By carkhz316 · Posted

      Its because they have thread locking compound on them. I would bet money that they are actually reusable and not a literal TTY bolt because GM and most other OEMs don't trust techs and the end-user to apply thread locker properly in the same way they don't trust anyone to solder properly (and instead instructing crimps everywhere). Torque To Angle =/ Torque To Yield.   If you think dealerships or any technician replaces every 'discard' bolt in every procedure, I have a bridge to sell you.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...