ansell Posted September 21, 2009 Share Posted September 21, 2009 Hi my name is erick anselmo. i have a 1977 datsun 280z but is over charging,i already replace the alternator,the voltage regulator the battery is new.the car is at the shop for now any ideas will be great. thanks Quote Link to comment Share on other sites More sharing options...
roger.svoboda Posted September 22, 2009 Share Posted September 22, 2009 what makes you think it is overcharging? Quote Link to comment Share on other sites More sharing options...
Phlebmaster Posted September 22, 2009 Share Posted September 22, 2009 Please utilize the search function, it will help you find your answers. http://forums.hybridz.org/showthread.php?t=153316&highlight=OVERCHARGING Quote Link to comment Share on other sites More sharing options...
ansell Posted September 22, 2009 Author Share Posted September 22, 2009 Thanks,i already tried but i don't find a clear answer.the volts gauge is all the way up and the red ligth is on at all times... Quote Link to comment Share on other sites More sharing options...
Phlebmaster Posted September 22, 2009 Share Posted September 22, 2009 Thanks,i already tried but i don't find a clear answer.the volts gaugeis all the way up and the red ligth is on at all times... First step is to take your alt to a shop and have it tested. That is free and will tell you if the alt is bad. Quote Link to comment Share on other sites More sharing options...
MONGO510 Posted September 23, 2009 Share Posted September 23, 2009 Cancel its Visa! Quote Link to comment Share on other sites More sharing options...
Daniel280zx Posted October 3, 2009 Share Posted October 3, 2009 You might want to check the cars voltage with a multi meeter. the volt gauge in the car could be malfunctioning. I have a 79 280zx and i ran the voltage from my car through a multi meter just to check it and my factory volt gauge is off by a few volts. just a thought. Quote Link to comment Share on other sites More sharing options...
HowlerMonkey Posted October 5, 2009 Share Posted October 5, 2009 Remember that the car uses ground as it's reference for zero voltage. If you have a lifted ground, your car will overcharge regardless of how many alternators or regulators are installed. I would check the path from negative battery terminal to body ground and then make sure all wires going to the extrernal regulator actually make the trip. Some common symptoms of a lifted body ground are a jumpy tach and a whining noise when the radio is on and engine running. Quote Link to comment Share on other sites More sharing options...
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