Something your friend may be able to try in the meantime if the car needs to be driven is try shifting manually down to 1st, get the car moving and then upshift manually again to 2nd and then finally Drive to pick up 3rd and 4th gears.
I'm actually taking an auto trans R&R and diagnostic course right now, too bad it's not June yet or I'd know a little more about this and be able to give some better suggestions. At this point I'm really not sure if replacing the faulty solenoid(s) by themselves would fix it or if possibly the faulty solenoids allowed too much slippage by way of lack of line pressure through the valve body and burned up a clutch pack.
I'm actually taking an auto trans R&R and diagnostic course right now, too bad it's not June yet or I'd know a little more about this and be able to give some better suggestions. At this point I'm really not sure if replacing the faulty solenoid(s) by themselves would fix it or if possibly the faulty solenoids allowed too much slippage by way of lack of line pressure through the valve body and burned up a clutch pack.