High idle is totally normal when cold, it has been 2-8 degrees here just now getting back to 22F. how old is the battery? I recently replaced a 6+ year old battery for someone as a christmas gift. if they left emergency lights on for a few minutes with the car off and nothing else on it not have enough juice and wouldn't turn back on. Upgraded to an AGM from standard 12V
Beast
High idle is totally normal when cold, it has been 2-8 degrees here just now getting back to 22F. how old is the battery? I recently replaced a 6+ year old battery for someone as a christmas gift. if they left emergency lights on for a few minutes with the car off and nothing else on it not have enough juice and wouldn't turn back on. Upgraded to an AGM from standard 12V
259k miles and it still starts right up