Bouncing Off Rev Limiter

[EFLine]

Want to know what you guys think about this.

 

Was on a road trip on some back country 2 lane roads and came to a stop sign behind a dump truck, we both go through the stop sign and once I see it's clear I WOT the truck to pass, I was doing about 20mph when I floored it, downshifted and look off, RPMs climbed and then bounced off the rev limiter 3 times very rapidly, possibly a backfire and then slammed into the next gear.

 

This happened again today, a few weeks later.

 

Do any of you experience this?

 

No trouble codes, no lights, no tune, running 87 octane, only tow a 4,000lb boat around occasionally so it has not been abused

[Dnt]

How many miles? Did you buy this truck new or used? Any Mods or Tuned? It should never bounce off the rev limiter with a factory engine/trans tune.......

[EFLine]

I bought it CPO which we all means squat but have put 30k miles on it and it's at 56,000 miles now with no tune, no mods except RC level kit

[15_silverado]

Any wheel spin; traction control or stability control could cause that.

 

Are you able to duplicate that often?

If so turn off traction control and stability control off one at a time to see if that changes anything. Hold traction control button down for app. 8 seconds or so to turn off the stability control. But again try just traction control off first.

If that corrects the problem, and you have no tire spin maybe ask the dealer if there's anything they can update or adjust.

 

Or do you have bigger tires, if so, maybe your speedo needs to be corrected, that could cause that also,if the computer thinks you're accelerating a a different speed. just a thought

 

Maybe it had a tune before you bought it.

Or maybe it would benefit from a good tune now.

[newdude]

SLT trim are you 5.3 or 6.2 engine?

['17 Sierra]

SLT trim are you 5.3 or 6.2 engine?

Hopefully 5.3 since he's running 87 octane.

[lowrider]

Are you sure it was the rev limiter and not the speed limiter?

 

Lou

[Dnt]

Being a used vehicle most likely it had been tuned at some point (possibly by a knuckle head LOL). If it is still in warranty just run it back over to your favorite dealership and have them do any updates that show up, that way the tune settings will be wiped out and you will be set back to factory spec. I would not want to run it with a questionable tune in the ECM if it is showing these strange symptoms. Good catch on that you knew that was not right when it happened......

[muddkatt]

Banging off the rev limiter means the transmission did not shift at the proper time. While it could be something mechanical inside the transmission, its probably "electrical" . Have the dealer check to make sure that it has the latest updates. If they can't figure it out, I would suggest a tune so that you can set the shift points.

[lowrider]

^^^^Yes, hence my question. I have never bounced off the rev limiter in my truck, but have hit the speed limiter a handful of times.

 

Lou