Hey I’m here because I’m kind of at a loss on what to do with my 4 cylinder 2007 mercury Milan with 10200 miles. It was the perfect car up until I started experiencing a rod knock due to the previous owner not maintaining the engine, so I ended up swapping the engine for an engine with 42000 miles on it but the mechanic sheared the tranny pump doing so, they replaced the pump (with a used pump) and the Solenoids but the car still shifts a little rough and slams into reverse. Is this car worth keeping especially after I just dropped 2k on a new engine (which runs beautifully), so ideally I’d like to keep it, do you know any remindies to this? I already checked the tranny fluid and it’s filled properly but I know automatic transmissions are a real pain to work on so I don’t know what to do, thank you in advance!