truck bogging down around corners, dyno tune

[Ryansal]

Hello all,

 

I have a 2018 silverado crew cab 5.3 with headers and dyno tune, and the oddest thing happens when i'm turning a corner.

 

it seems to almost be stuck in a high gear after turning a corner and upon accelerating the RPMS actually go down as well as lackluster performance and poor speed...  if I jam on the gas pedal it will down shift but at really high RPM which seems completely out of line. 

 

Versus after turning a corner, accelerating and the RPM going up and a gradual transition to a higher gear.

 

Please advise, thanks in advance!

 

 

[newdude]

19 minutes ago, Ryansal said:

Hello all,

 

I have a 2018 silverado crew cab 5.3 with headers and dyno tune, and the oddest thing happens when i'm turning a corner.

 

it seems to almost be stuck in a high gear after turning a corner and upon accelerating the RPMS actually go down as well as lackluster performance and poor speed...  if I jam on the gas pedal it will down shift but at really high RPM which seems completely out of line. 

 

Versus after turning a corner, accelerating and the RPM going up and a gradual transition to a higher gear.

 

Please advise, thanks in advance!

 

 

 

 

They do this stock.  I've not figured out if its torque management or if its a transmission issue like converter slip or pump low pressure/failure.  

Edited September 1, 2023 by newdude

[CamGTP]

I don't have this problem at all in my 2016 with the 5.3/6 speed. I tuned mine myself but I don't even remember it doing that when it wasn't tuned at all.

[Wyatt1963]

True

mine does similar “falls flat” when coming out of a slower turn. Almost as if it s confused on what gear it is supposed to be in. 
stutters then finds a gear. 
Not sure if this is fixable or characteristic on the drive train. ??
 

[Ryansal]

Hi all, It was suggested that I add some transmission fluid, after checking my fluid my "cold" level was fine but my "hot" level was low.

I added about half a quart and It seems to have improved, albiet I did this a few days ago only, will give updates.

 

Wouldn't think transmission fluid would be on the lower end at 32k miles.