Auto Answers » View Question
civico ... 9/28/2012
2001 Honda Civic EX 4 Cyl 1.7L - Engine
Electrical problem with my Civic
I drive a 2001 Honda Civic Ex. I notice my electrical power shuts off sometimes when I slow the car down to an idle. The radio and control panel will shut off. When I turn the air conditioner on, this can also cause the power to go out. Has anyone seen this? I tested the battery and alternator and it came out fine.
2 Answers
  • Joe Boulay
    Joe Boulay 9/29/2012
    First check your main battery ground and positive cables and make sure they are clean and tight. The voltage regulators in those alternators have had issues in the past with overcharging. Turn the headlamps on and monitor headlamps and see if they brighten and dim continually. monitor alternator voltage output simultaneously should not be more that 14.50 volts @ idle. hope this helps you.
    Joe Boulay
    civicowner2012 10/1/2012
    I went to O'Reilly and had them hook up the voltage meter to my battery while the car idled. It was stable. I think it was due to all the corrosion on my battery. We cleaned it up and the problem has not reappeared. Thank you for your expertise. I have 201k on it and still going strong. I have owned my civic for 10.5 years.
  • Carrie
    Carrie 3/6/2013
    I have had similar issues in recent years with my ex. I have the same model and year as yours. If your alternator is overcharging, it will eventually quit working altogether and also because of the constant strain of overcharging you will most likely have other electrical issues such as multiple Starter replacements within a year. Best bet is to replace the starter as soon as you can to prevent other issues. eventually, your alternator will die out and in doing so, it will cause your car to shut down. first, you will notice your head lights diming drastically and the speedometer will follow, and engine will cut off. This is fairly dangerous if you are driving at night or on the interstate. Be cautious!
    Carrie 3/6/2013
    mistake* replace the Alternator, I apologize.

Preview Answer