Quote:
Originally Posted by ScionFR-S
yeah but my question is this why does the car work when i take the battery terminal off and put it back on, or why does the steering wheel shake sometimes when I'm going slow and turning ? i tested the alternator and it works bc i undid the terminal as the car was on
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That's not going to be an accurate test as your car's electrical draw at idle is going to be different while you're driving around with various electronics on.
Easiest thing to do is to get the battery and alternator tested. If those are good, then you've got an electrical problem elsewhere and now you're going to have to play the take one piece out at a time until you find the problem game.