unbroken

iTrader: (4)

Last week I had the chevy dealer do a trans fluid/filter change. Prior to the change the car ran great-etc. I have a custom wait4me tune, TQ management removed, firmer shifts etc. After the fluid change the car shifts smoother, but will only kick down to a lower gear when going slower. B4 it would kick down to 1st if I was going like 30mph. Or at 67 mph I could kick down to 2nd. Could they have reprogrammed the PCM? or forgotten something?

staringback05

iTrader: (8)

fluid can actually affect the tranny alot...check the level...im pretty sure they wouldnt have hooked tech2 up to it and done something