2017 Volvo V60 POWER TRAIN,FUEL/PROPULSION SYSTEM

I BOUGHT THIS 2017 V60 FROM CRIPPEN VOLVO IN 2019 WITH ONLY AROUND 1000MILES ON IT. I AM THE FIRST OWNER. THE TRANSMISSION ACT WEIRDLY ON THE SECOND DAY I BOUGHT IT. IT HAS A POWE CUT BETWEEN 1ST GEAR AND 2 ND GEAR, JUST LIKE DRVING A MANUAL. (ONLY WHEN IT IS COMPLETELY WARM) BRING IT TO CRIPPEN VOLVO, THEY UPDATE THE SOFTWARE OF TCM, THINGS GET BETTER A BIT. BUT STILL JERKY FROM 1ST GEAR TO 2ND GEAR. BRING IT TO SUBURBAN VOLVO, THEY RESET EVERYTHING OF THE SOFTWARE. THINGS GET BETTER A BIT, BUT THE PROBLEM CAME BACK SEVERAL DAYS AFTER THAT. IN MARCH 2020, BRING IT TO SUBURBAN VOLVO AGAIN, TECHNICIAN THERE OPENED A CASE WITH VOLVO USA, VOLVO USA TOLD THEM TO REPLACE THE WHOLE TRANSMISSION. JOB GOT DOWN AFTER A MONTH. IN LATE APRIL, PROBLEM COM BACK AGAIN, THE NEW TRANSMISSION JERKY FROM 1ST TO 2ND GEAR WHEN IT IS COMPLETELY WARM, (JUST GET OFF THE HIGHWAY) I DON'T KNOW HOW THEY WILL HANDLE IT NEXT. I WILL GO THERE AGAIN ON 4/30 I ALSO HEAR POPPING NOISE FROM THE FUEL TANK EVERY TIME I TOP UP THE FUEL TANK. IT SEEMS LIKE IS THE BAD FUEL PUMP CAUSES THE PROBLEM.

THE POWER GET CUT WHEN SHIFTING FROM 1ST GEAR TO 2ND GEAR. FEEL MORE JERKY WHEN UPHILL. THE FUEL TANK MAKE POPPING NOISE (LIKE BOILING WATER) WHEN IT IS FULL TO THE TOP (100%)