Throttle lag/stall feel

10’ auto v6: Noticed more recently a lag between 35-45 trying to speed up almost like a stall feel. Maintenance always done on time cleaned maf sensor and tb a few months ago. Fluids always done on time
I know these trucks are notorious for throttle lag but sometimes it can be frustrating. I know theses the options of tune or throttle controller obviously just want to be sure nothing else is up. Transmission shifts through all gears no problem plus fluid was done at 100k. Tia to any help

 

How many miles on plugs?

 

Done around 7k ago so not long

 

New wires and coils haven’t done tho so maybe..? Idk

 

CEL on?
Any codes?

Does it stumble like a misfire or is it just a lack of acceleration?

 

No cel on haven’t scanned for codes tho. Feels like a slight misfire bc the truck overall runs good

 

Tune can change it and is probably better than a throttle modifier.

don’t the 5ATs have a thing inside the pan that can be turned with a screwdriver to improve the shift behavior?

 

I agree. And no clue never heard of that. Maybe

 

Sounds more like a fuel or spark issue but no expert. Tried running injector cleaner through a tank?

 

not a bad idea. Whether it be mild cleaner in tank, moderate EFI service, or real deal bench injector service

 

Added some injector cleaner this morning, may do it again in a few days