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Car Keeps Dying

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Old 11-14-2018, 05:53 PM
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g35 Coupe
Car Keeps Dying

ok so my car keeps dying if not started for about a full day. Jump it and starts and runs fine, and starts fine throughout the day but when it sits it doesnít start, it it goes 2 day: it just completely dead no lights or anything.

Things ive done:
1) Battery Tested Good - From autozone
2) Starter Tested Good - from autozone
3) Alternator Tested good- from auotzone (on car)
4) Connection were clean, but I cleaned and sanded slightly anyways

after these 4 the car is still dying, heard maybe a power wire from Bat to alt. But it seems like it charges fine since the car can turn on and off just fine after a drive, seems to be a drainage issue but I could be wrong

what do yíall think? Things I should check, quick look in fuse box didnít see anything blown, didnít do a full check but all systems work well, and no I did not leave anything on.
Need to know ASAP! Thanks
 
  #2  
Old 11-14-2018, 06:59 PM
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check battery voltage while cranking - could be a cell that's only failing under load.
 
  #3  
Old 11-14-2018, 07:23 PM
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Originally Posted by g356sp View Post
check battery voltage while cranking - could be a cell that's only failing under load.
hey so how do I do this? Not to familiar with electric or systems
 
  #4  
Old 11-14-2018, 10:35 PM
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Google "How to check battery voltage" and see what happens
Have friend crank car while you look at multimeter.

My 2 cents are on drainage issue. Google "Check battery drain DIY" Mine does the same thing but it needs to sit for 2 weeks not two days.
 
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Old 11-15-2018, 11:04 AM
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Originally Posted by Mateo Oliveras View Post


hey so how do I do this? Not to familiar with electric or systems
Purchase a battery hydrometer and check the specific gravity of each of the six cells. If any are not at full charge replace the battery



Telcoman
 
  #6  
Old 11-15-2018, 03:14 PM
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Unplug the fuse for the CD changer and see if the problem goes away, if you have ANY other electronics installed start pulling fuses u til you find what's drawing current.
 
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