help anyone

[02 dodge4x4 5.9]

driving normal at around 50 mile an hr my truck will act like it slips a lil the rpm will rev around 100 rmp then its fine . it doesnt do this all the time /never when im loaded/ just when empty an driving in traffic
anything that i might reset or i dunno
everything else acts fine
almost does it the same time that the kickdown should kick in
thanks

 

[sootman]

what are your temps? You might need to adj. the throttle valve on your tranny. If you have an 02.... adj it at the head right above the inj. pump. You can also turn up the pressure in the valvebody.$.02