car idles rough when cold or warm, then cuts out, loses power, can not accelarate
My car has 290000 miles.
My car has an automatic transmission.
Check for a vacuum leak on the engine. A vacuum leak will cause the engine to rough rough and stall out when the engine is cold or hot. If there is no vacuum leak, then the Mass Air Flow Sensor could be dirty or damaged. The sensor would need to be cleaned or replaced. If you need further assistance with your engine stalling, then seek out a professional, such as one from Your Mechanic, to help you.
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