ok ive noticed this problem when i was intalling my car headunit for the first time. i got everything together installed it and so on. when i reconnected the battery the car started and idled fine. so i started driving around playing with the new radio. and i came to a red light. i hit the clutch to put it out of gear and i noticed that the rpms dropped really low about 500. it was very close to stalling but never did. so i turned off the radio pulled over on the shoulder and began reving it thinking the battery might have discharged and the alternator needed to charge it up. once i thought everything was fine, i began driving and it started doing it again so i decided to just go home and try to figure it out later. when i turned on the car later that day the car was running fine no problems. anybody might have an idea what might be wrong? im thinking it might be the battery, its fairly old and its some cheap battery. even if the battery is disconnected for 5 secs this problem re occurs.
thanks for your help
thanks for your help
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