TAwhore

so i changed my fluid and my filter in my 4l60, and it still hasn't fixed the problem...


my problem is that my tranny will make some hard 1-2 shifts and sometimes will start in 3rd gear and never downshift or up shift....

can someone tell me what the possibly wrong?

big wally 55

No electrical to trans = 3rd gear only , no upshifts or down shifts .

performabuilt

iTrader: (25)

It does sound like you have some electrical issue going on , Do you have access to a scanner and or a data logger tuner? Sounds like thats the direction your going to have to go.

TAwhore

i have an aeroforce obd2 scan gauge....what should i scan for, i'm not throwing any codes

performabuilt

iTrader: (25)

Does it have data capabilites can you look a comanded gear etc?

TAwhore

i'll have to check when i get home, thank you very much guys!

TAwhore

bumpage

checked grounds, checked if the vss is connected, all looks alright, the 3rd gear start is still annoying me.

the ground on the driver front from the chasis to the alt looks dirty and has a tiny bit of rust...would this cause the issue?