Q: Car runs rough after it heats up.

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I have replace everything on my car except the emc My car will start up normal. I can drive it on the highway with no problems once it heats up. I can stop at a red light and it runs so ruff it misses really bad. I can give her a little extra gas at the light and she will run fine with a little rattle in the engine and the rattle sounds like like a bearing. The A/c works perfect. Temperature gage works. Every thing works in the car. Other than that she's perfect. I have replaced wires sparks plugs o2 sensor and air filter. We even disconnected the tork converter. Just in case it was clogged. Every thing I have done to it changes nothing. I get 32 miles to the gallon of gas. The only thing that don't work on my car is the driver side door window won't roll down. Please help and thank you. I can afford to take her to the shop since everything has been replaced. Thanks

My car has 30000 miles.
My car has an automatic transmission.

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