03 neon. 84,000 and Bad vibration at idle. changed the engine strut mounts.only code pulled is 441. that has been coming on once a year for the last 3 yrs. Car is all tuned up. Appx. 3 yrs ago trans cooler blew and antifreeze mixed with trans fluid. I had it flushed out then. Possible vibration is from torque converter? I coded a 740 last year and changed the solonoid. Any suggestions to check??