Why does my Lincoln LS 2002 get loud when accelerating quickly and hesitant? on 2002 Lincoln LS

I recently had to have my Lincoln LS 2002 serviced because every time I hit the gas, it would get really loud like a truck. The check engine light is usually always on, but it started blinking after driving maybe 5 minutes. I had it serviced and the dealership found that the tire rods had been broken and rigged back together. Those were replaced. It cost almost $3,000 to repair it and now the check engine light is back on and has been staying on again and it still gets loud sometimes but not every time I press the gas. It usually happens when trying to take off or accelerate quickly. It seems to be a hesitant also. Today it said ABS Check traction Control, but didn't say it again after turning the car and turning it back on later.

Asked by for the 2002 Lincoln LS
2 answers 2 comments
poss exh leak?
I don't know. I originally thought it was an exhaust leak but checked out on diagnosis and I just had my oil changed yesterday and the exhaust seemed fine and was checked as good on the checklist.
having some codes will help.