Hello, I am new here and need all your expertise, please! First off, I'd like to thank you all for being here and helping me!

My beloved 2003 9-3 linear auto has been overheating. I only drive it in the summer and it has 145,000 miles on it. I got a new radiator from radiator online and my mechanic (not Saab Specific) installed it. It still overheated at the end of last summer, so I put her to bed for the winter. I bought another radiator from Saab Specific who has worked on the car but is over an hour away from me. He shipped the correct radiator to my mechanic locally, they installed it and took it for a drive and it is still overheating.

Does anyone have any advice for me ? I'm waiting for a call from my Saab Specific tech but he is so busy and over an hour away that I thought I would try here also. Thank you for your help!