toyota yaris 2010 alternator giving problem after one weak

Asked by laraib Apr 22, 2016 at 03:46 AM about the 2010 Toyota Yaris

Question type: Maintenance & Repair

When i change the alternator then after 7 days again damage not working
then i can not start then i park after 20 hours when i start then start my car but
battery volt found 12 volt mean charging system is not working what is reason
i change three times alternator

1 Answer
70

glenn answered 8 years ago

Dead cell in battery, bad ground in system, tensioner could be froze up, belt stretched out, etc. My first suggestion, put your battery on a smart charger. Does it come back with any codes, like dead cell? Next, if battery is fully charged, start car. Put one end on voltage tester on positive battery post, the other end ground to engine. Make sure tester in on dc volts. Normal output is between 14.2 to 14.4 volts. If you do not have access to battery charger or tester, some parts stores will do this for free. Call around.

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