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2019 5.3l 8 speed jolt when accelerating

Bmwtech113
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Will71 Enthusiast

Will71

Posted
Posted

My rst z71 does this too I would describe it . more like a surging feeling, seems to be the engine is programmed to go lean/rich under accell when cold causing a back and forth sensation, probably to limit emissions during warm up? Just throwing it out there? 

 

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UGADawgs
UGADawgs

I have the same lunge from 1-2nd if it's cold and I lightly accelerate. If I give it half throttle when cold, no issue. Also, no 1-2nd shift issues when warmed up. 

ShamrockShooter
ShamrockShooter

since I have driven 5 trucks and they all do it, I'm just going to accept it as normal and learn to accelerate harder that first shift of the day Sent from my Pixel 2 using Tapatalk

econometrics
econometrics

Yeah, get in line, OP. We're all having these issues with our 8 speeds. Lol!    My issues have been like UGADawgs'... whenever I baby the throttle, I notice the harsh shifting more than when

Randall Durham New Member

Randall Durham

Posted
Posted

I have noticed (as stupid as it is) if you start in manual mode with the transmission and run through the L1-3 and then switch to D it will run totally different through out the day....very strange

  • 5 months later...
Ray Lacelle New Member

Ray Lacelle

Posted
Posted

Currently my 2018 Colorado has been sitting at a dealership with a vibration problem after the flush.The dealer told me they don't have a transmission tech to asses the problem, I told them i would get it towed to another dealership that has a tech.GM customer care did not like that idea because the dealer told GM customer care that it was safe to drive.I told GM customer care that the dealer had no right to tell you if it is safe to drive because they don't have a tech to asses the problem. So i gave them a couple of scenarios to think about. 1st scenario i pick up the truck drive away no problem untill i find a tech to repair the problem. 2nd scenario i drive the truck away, the problem with the vibration causes me to lose total control of the vehicle, i wind up hitting a school bus full of kids killing them all. Ya the truck is still there and it seems no one wants to to get back to me concerning this problem. My son owns the all new AT4 and guess what he has the hard shift problem in his transmission too not sure what he is going to do yet becuase he bought it at the same dealership my truck is sitting at good luck with our problems. Don't be afraid to use my scenarios with your dealership when you bring it in for your problem.

  • 3 years later...
Osvaldo New Member

Osvaldo

Posted
Posted

I have a 2019 Silverado never had an issue with my truck but yesterday while I was driving I came to a complete stop sign everything good but once I pressed on the gas pedal the truck wouldn’t move 

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