G35 Sedan V35 2003-06 Discussion about the 1st Generation V35 G35 Sedan

Battery won’t keep charge

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Old Mar 8, 2023 | 12:00 AM
  #1  
bucci757's Avatar
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lowered a couple inches minor tweaks to the engine subtle changes to the body needs work still
Battery won’t keep charge

It started out with the brake and battery lights turned on on the dash
i would accelerate and around 30mph+ the lights would go away but at lower rpm’s it would turn back on
A day or two goes by no lights
the next day lights are back car won’t start my electrical components still work but having a dimmer brightness try to start just get clicks a jump will get it started but not for long
come back the next day got a new battery install it everything’s fine no lights driving normally towards the afternoon the car starts losing power on the road I pull over the car completely shuts off try to start it again some electrical components work just getting clicks get a jump still won’t start electrical components still come on but starts to fade got it towed replaced the alternator a day or two after gave it a jump turned on but the battery won’t hold a charge for long take the battery to get charged was sitting at 7 meter said it was good they charged it for a bout 2-3 hrs pick it up install it jump it runs fine took it for a drive around the neighborhood let it sit for 5 minutes to let the battery charge turn it off turn it back on just to make sure it’s good go out that afternoon it’s driving fine then start losing power again but now it’s a limp mode didn’t risk it pulled over immediately n shut the car off tried to give to give it a jump it started but did the same thing after attempting to pull off
Any solutions to solve the issue or routes to take to figure out what’s going on is the battery being drained and the alternator not charging the battery
 
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Old Mar 8, 2023 | 01:16 AM
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Jump your car and get it started. Disconnect the jumper cables.

While the engine is running, measure the voltage at the battery terminals. Should be about 14 volts. If its 12 or below, then your charging system is messed up.

 
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Old Mar 10, 2023 | 12:14 PM
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Check the fusible link to see if you blew the alternator fuse. Also inspect the alternator wiring, maybe it just broke off.

If the battery light is on with the engine running it means your alternator is not working.
 
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