2000 chevy 1500 transmission hard shift
are the solenoids on out side of transmission so i can service. if not will it do
any good to service it just shifts hard every once in a while. light will come on
stay on then go off if i drive 20 or so miles
No the solenoids are inside attach to the valve body. Sometimes a good service will help but usually you will be back in there in a few weeks replacing the solenoids.