Jump to content

Slipping Chugging from stop

Offcamber

Recommended Posts

Offcamber Enthusiast

Offcamber

Posted
Posted

I just noticed the truck doing this.

2016 2500 4x4 6.0 Double cab with about 5K miles on the OD

 

When pulling away from a stop being slightly heavy on the throttle the truck seems to chug almost as if the tranny is slipping a little. Kind of a power on and off kind of thing. Haven't noticed the engine revving while its doing it. Seems likes its only for the first gear or two. I think it may be the traction control. Seems to not do it when I turn it off but I need to do more testing. Does on dry or wet pavement. First time I noticed it was accelerating up an on-ramp but now I notice it does it when leaving a stop on flat ground.

 

Has anyone else noticed this? Is it in fact the traction control? Dealer is an hour away so I really don't want to being it in if I don't have to.

 

 

thanks

 

 

I'll add one more thing....I just towed a 5K lb camper about 200 miles round trip through some hilly terrain and didn't notice it. So I am less likely to think its a slipping transmission.

TX.45 Enthusiast

TX.45

Posted
Posted

Traction control is really aggressive on these trucks, thats probably what your noticing. I turn it off pretty often because I don't need it when driving the speed limit on freeway or in traffic. Stability control should be left on in normal driving though, it can save your hide in an emergency situation such as a quick lane change.

 

That's how I preferred to drive my C6 corvette when I had it as well. TC off, stability on. That's my opinion anyways.

4wdriver Enthusiast

4wdriver

Posted
Posted

Yes my truck does what you describe. Not sure what it is. My trans is sometimes confused a little also. I always turn off traction control and sometimes stability control however the stability control turns its self on when a certain speed is reached. 14k on mine I will ask the dealer if they know why it does this however I'm not counting on them to provide any help.

fjtort2 Enthusiast

fjtort2

Posted
Posted

It could be the terrible tune from the factory they put on the 6.0s... Mine does it off and on through its career. 38,000 miles now... No issues. Just annoying. Getting it tuned July 22nd.

cpap Enthusiast

cpap

Posted
Posted

I was just about to start a thread about the same. I notice mostly climbing a hill. The truck pulsates while under moderate load. Never felt anything like it in any other vehicle. I'll try flipping the traction control switch and see if that alleviates it.

 

I also notice the confused tranny as well. It even seems as though it will miss a shift every once in a while. The revs will go up then pop into gear between shifts.

 

Wonder if this is all related. Bad transmission?

4wdriver Enthusiast

4wdriver

Posted
Posted

I was just about to start a thread about the same. I notice mostly climbing a hill. The truck pulsates while under moderate load. Never felt anything like it in any other vehicle. I'll try flipping the traction control switch and see if that alleviates it.

 

I also notice the confused tranny as well. It even seems as though it will miss a shift every once in a while. The revs will go up then pop into gear between shifts.

 

Wonder if this is all related. Bad transmission?

 

Not sure about bad transmission but definitely annoying. I wouldn't be surprised if these issues are related to the increasing number of computer inputs that control everything now on the maybe to modernized trucks. Look at all the things we can monitor while we drive like the attitude of the truck in degrees a parameter like that is not a perk it's something the truck considers when deciding to shift on a hill or while towing and probably why letting off the gas to turn from the flat onto a hill completely confuses my transmission.

fjtort2 Enthusiast

fjtort2

Posted
Posted

I think it's normal operation of these 6.0s 6speeds.. Mine does the same.. Sometimes great power... other times its a slug!

gearheadesw Senior Enthusiast

gearheadesw

Posted
Posted

There's another thread on surging at low revs under slight load. Some feel its the torque converter lock up programming, as do I.

SMiller Senior Enthusiast

SMiller

Posted
Posted

There's another thread on surging at low revs under slight load. Some feel its the torque converter lock up programming, as do I.

That is true but that requires the truck to be in 3rd gear for the torque converter to be locked and the OP said on take off.

 

As always a tune will fix the problem.

 

As a test try using tow/haul and turn traction control off, bet you will find no more issues.

sdeeter19555 Senior Enthusiast

sdeeter19555

Posted
Posted

That is true but that requires the truck to be in 3rd gear for the torque converter to be locked and the OP said on take off.

 

As always a tune will fix the problem.

 

As a test try using tow/haul and turn traction control off, bet you will find no more issues.

Torque converter on a 6l90e in my 2012 can and will lockup in all six gears...from a standing stop it will typically not lock first because it rolls through 1st so quick. Once rolling it will lock the converter for all other shifts. There are some exceptions, but that is the most typical scenario.

 

I have an Edge Insight that shows gear and converter lockup...

 

Sent from my SAMSUNG-SM-G900A using Tapatalk

Archived

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

Go to topic listing

  • Latest Articles

  • Posts

    • Atlas
      Wow I'm in a pickle. (Broke down truck) and a story.

      By Atlas · Posted

      While waiting for parts I have been working on installing the AC compressor, new accumulator, and orifice tube. Also changed out the high side ball valve (original). The orifice tube that was in there wasn't too bad. Slightly dirty, a little bit of junk, but not blocked. Glad I changed it out.   The accumulator, which should have been a 5 minute job, may have just burned $50. Put some PAG in it, wrote the date and mileage on the side, fresh o-rings and gooey'd up the threads and rings with Nylog. Got everything connected and snugged and was going to vacuum down the system, and....   My manifold gauge won't fit on the port. It's not an R12 service port. It LOOKS like an R134 service port but the diameter is a hair too large. There's a sticker on the accumulator that says it's designed to be used with R12 and R134a systems only. So it's not R1234yf. Even if I reduced the diameter slightly with a file, the shoulder on the port is too large so the quick-connect valve won't lock on. I'm stumped. It's going back, and 50/50 on if they'll give me a refund.   Also, I did a fuel pressure test.... Key on, the gauge spikes to about 60psi and quickly bleeds off, like 2psi per second. The fuel isn't going into the plenum, no smell, starts fine, so I'm guessing there's a bad check valve in the pump and the fuel is just draining back into the tank. oh, hell. But, it shouldn't be a problem, pump primes just fine and the truck starts right up. It just means I can't really ever use fuel pressure to verify a leak at the injector or intake.
    • No F-bdy Bs
      SERCICE ESC message?

      By No F-bdy Bs · Posted

      Got this yesterday out of nowhere. Truck is a 25',6.6 gasser with 8k miles.  Only semi anomaly is that the truck had been sitting, uncranked for 6 days. Elec Stability Control showed immediately upon cranking, not while driving. No drivability issues, just the message. Battery didn't seem to be weak when cranking over.  I drove it, killed it, let it sit a few hrs with no avail.  Truck is 100% stock. No damage. 
    • newdude
      on-wheel cellphone control: 2026 1500 WT (2.7L 4WD std cab)

      By newdude · Posted

      This can be done.  It is not cheap and requires an instrument cluster swap with custom programming, new steering wheel with the controls on it, and a special jumper harness.   The cluster upgrade - 12.3” Digital Cluster Upgrade – 2022.5–2026 Silverado / Sierra (T1 Refresh Pickup) - WAMS   The wheel upgrade - Steering Wheel Upgrade Kit – 2022.5–2026 Silverado / Sierra (T1 Refresh Pickup) - WAMS   The column harness upgrade - 2019 - 2026 Silverado / Sierra: Steering Wheel LIN Bus Harness - Harness Dr. - DIY Done Right     The problem with doing all of this?  You pretty much can't have any programming done to your truck that involves the cluster ever again.  The dealer won't be able to program the cluster as GM's system will only pull data for the cluster the truck came with.  So it would be advised also to turn off over the air updates.   TLDR;  Should have bought an LT double cab?  You'd have a power seat, the wheel controls, the cluster, all things that you've been seeking in your various posts so far about your new WT regular cab.  
    • dna9656
      New to Me 2010 SLE (Quirks, Issues)

      By dna9656 · Posted

      I was unaware of that, thanks for updating me.
    • newdude
      2026 TurboMax L3B 2.7L: AFM/DFM present/disablable? [2026 Silverado 1500WT: 4WD RC RB 2.7L]3GCNKAEK9TG345558

      By newdude · Posted

      Yes.  The 2.7 Turbomax has Active Fuel Management.  It is NOT the same as the V8s.  Totally different system.     Here is an article from GM when the 2.7 came out explaining the cylinder deactivation and the valve lift system.  Starts at the section called "SCS Valvetrain":   New Turbocharged 2.7L 4-Cylinder Engine Powers Full-Size Trucks – TechLink         This is an internet myth going around.  It was alleged that some 5.3s had this mystical 8th digit of the VIN as an "E" which somehow meant it had a new one year only 5.3 that didn't have DFM.  The writer of said article and the person that made the claim conveniently can't count because they posted the VIN.  The 8th digit was a "D" which meant its still the 5.3 with DFM.  The 9th digit of the VIN was an "E" and the 9th digit isn't the engine code.  At all.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...