2001 Civic Voltage Issues Alright i have a 2001 civic ex with the d17a2 engine. This is my issue, when i first start driving the voltage stays at 14.4 volts. After 10 minutes or so of driving, the voltage drops to 12.5 volts. If i let off the throttle or idol long enough the voltage will go back up to 14.4 volts. If im driving over 65 mph the voltage will stay at 14.4 volts. If i turn on headlights/ac/defrost anything like that the voltage will go back up to 14.4. Any idea what could cause this? Someone said that it could be the voltage regulator but im not sure. If anyone has any ideas id appreciate it. |
Re: 2001 Civic Voltage Issues The car has a load detection system on it that only increases the voltage when it is needed. Sounds like the fluctuations you are seeing are due to that, which I believe are normal. |
Re: 2001 Civic Voltage Issues
Originally Posted by GolNat
(Post 4643953)
The car has a load detection system on it that only increases the voltage when it is needed. Sounds like the fluctuations you are seeing are due to that, which I believe are normal. |
Re: 2001 Civic Voltage Issues It is normal operation of the ELD system. |
Re: 2001 Civic Voltage Issues No reason to bypass it. It's working like its suppose to. |
Re: 2001 Civic Voltage Issues
Originally Posted by GolNat
(Post 4643962)
No reason to bypass it. It's working like its suppose to. |
Re: 2001 Civic Voltage Issues That's normal. When you see the 14v is when your alternator is charging your batt or giving you car the required extra juice. |
Re: 2001 Civic Voltage Issues
Originally Posted by sl33pyriceboi
(Post 4643972)
That's normal. When you see the 14v is when your alternator is charging your batt or giving you car the required extra juice. |
Re: 2001 Civic Voltage Issues
Originally Posted by bmk6795
(Post 4643942)
Alright i have a 2001 civic ex with the d17a2 engine. This is my issue, when i first start driving the voltage stays at 14.4 volts. After 10 minutes or so of driving, the voltage drops to 12.5 volts. If i let off the throttle or idol long enough the voltage will go back up to 14.4 volts. If im driving over 65 mph the voltage will stay at 14.4 volts. If i turn on headlights/ac/defrost anything like that the voltage will go back up to 14.4. Any idea what could cause this? Someone said that it could be the voltage regulator but im not sure. If anyone has any ideas id appreciate it. Then the alternator will aim to output the ~14.4V constantly. Won't harm anything, will just use a miniscule bit more gas and battery might run a few degrees warmer and all the electrical systems in the car will have more power. |
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