Why would my 2006 focus hesitate from second to third gear?my fluid is full while cold or hot? anything would be a great start.

The total capacity of your transmission is 9.7 quarts. However, it is improbable that all of the fluid drained out, since the torque converter is probably still full. It would probably take about 4 quarts. Just fill it up until you see fluid on the dipstick and then start the car and leave it in park. Then fill the transmission until it is within the range on the dipstick.

It could be a bad solenoid, or stuck valve(Most likely). Worst case is a transmission rebuild.

if engine is revving and it "hesitates" the takes off- check your transmission fluid level. if enigne does not rev correctly, but then takes off like you said and trans is ok- have you checked your air filter?

Check your spark plug wiries.

Check first the fluid if it needs replacing or you may need to add more. Dirt in the fluid may be a sign that the valve for the 3rd gear may be dirty or full of debris. If one gear is dirty normally the next gears are affected.

Have your checked your trans fluid?

clutch needs adjusted

Top up for the auto trans is usally through the dipstic hole as for how much to put in markings are on the the dipstick with markings for hot and cold depending on weather the car has been used or not and check with manfacturer as to what type to put in, as for not going in to gear or changeing gear, it probably needs the auto trans serviced or it could be on its way out.The starting problem could be to do with engine starter itself and it may need replaceing.

When was the last time you had a trans flush ? Sounds like you could use one. Trans fluid breaks down and doesnt work as well as i did when it was new. There are also sensors that tell it when to change gears could also be a sensor. I would start with a trans flush if it were my car. always try the least expensive first. then if u still have the problem look into calling a trusted transservice and ask them if the have any experiance in Volvo trans. if not fluid my bet is on a sensor in the transmission. Good luck and hope this helps ya.

Is it manual or auto trans? If manual the gear lube is thicker when cold and the syncronizers tend to stick and not slide free for grind free shifting or for locking into gear.
If Auto trans if the jeep is warmed up setting then cycle the gears before driving. If that helps then the fluid is not getting through the valve body properly. It could be metal in the body or filter or cold seals are letting fluid by til the seals warm, expand and hold pressure. I'm assuming trans fluid is good, not old. One item that can lead to poor cold shift in an auto trans is a bad torque convertor. Since it seems to be a second gear issue the second section of the trans could have a bad seal. In an auto trans I'd take to a shop and have a cold pressure test done. They will tell which one is the problem.