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Old 08-24-2015, 11:14 AM   #1
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Car won't start without jump after sitting

Hey Wasup yall, as some may know I just did a motor swap on my car. If I let the car sit for more than 30 mins it won't start back up without a jump it's like completely dead. I already replaced the battery and starter yeaterday. I'm thinking alternator next you guys think that could possibly be the issue.


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Old 08-24-2015, 11:19 AM   #2
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more details on what it does.....but triple check all battery/starter connections
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Old 08-24-2015, 11:21 AM   #3
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I would have done alternator before starter personally
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Old 08-24-2015, 11:24 AM   #4
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more details on what it does.....but triple check all battery/starter connections

It's a 2v 5 speed and If I let it sit for more than like 30 mins it won't start just a clicking sound but when I jump it she cranks right up. I highly doubt Is the battery and starter being I bought them new yesterday. Once i started it actually runs fine


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Old 08-24-2015, 11:25 AM   #5
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I would have done alternator before starter personally

When I get off work I'm going to get the alternator tested and hopefully it's that and nothing electrical going on


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Old 08-24-2015, 11:25 AM   #6
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If you leave it running after a jump does it die eventually?
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Old 08-24-2015, 11:32 AM   #7
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If you leave it running after a jump does it die eventually?

Nope it idles jus fine


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Old 08-24-2015, 11:37 AM   #8
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Have you left it running for awhile though? When alternators are bad they should drain out the battery after awhile and kill it. You might as well get it tested.
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Old 08-24-2015, 11:40 AM   #9
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Have you left it running for awhile though? When alternators are bad they should drain out the battery after awhile and kill it. You might as well get it tested.

Only about 10 mins but yea I'm go have it tested and see from there wat direction to head


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Old 08-24-2015, 12:16 PM   #10
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if it'll start after you jump it it's normally either the battery or connections at the battery. Mayhap you got a bum battery.
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Old 08-24-2015, 12:37 PM   #11
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Could possibly be I recheck all connections


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Old 08-24-2015, 01:05 PM   #12
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Yeah when I bought my car the alternator was junk, when I started driving it( I mean as soon as I left the car lot) the cars electrical started going dim and the whole car eventually just stalled out after idling really funny, I called the salesman who stated "it's just the battery" lol so he drove down and tried to jump me off and the car would not even start.. He even switched battery's and everything still did not start.. So long story ,but he had to buy me a brand new alternator and battery.. So I wouldn't think it'd be your alternator if the car is running fine once you jump it, never know though mine could have jut been completely done for lol


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Old 08-24-2015, 01:23 PM   #13
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Yeah when I bought my car the alternator was junk, when I started driving it( I mean as soon as I left the car lot) the cars electrical started going dim and the whole car eventually just stalled out after idling really funny, I called the salesman who stated "it's just the battery" lol so he drove down and tried to jump me off and the car would not even start.. He even switched battery's and everything still did not start.. So long story ,but he had to buy me a brand new alternator and battery.. So I wouldn't think it'd be your alternator if the car is running fine once you jump it, never know though mine could have jut been completely done for lol


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Lol you proved him wrong, I think I know wat it is, my rear defroster light stays on when the car is completely cut off. Guy Must have wired wrong from the swap. Do you think that little light could cause the battery to drain


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Old 08-24-2015, 01:25 PM   #14
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In my Nissan if we got the two wires to the alternator backwards which caused issues. When it's alternator was bad I could drive 10 miles before it acted up and eventually died
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Old 08-24-2015, 01:43 PM   #15
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Yea we drove an hour and it still was fine so in guessing is my defroster light that says on while the car is off is causing it to die


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Old 08-24-2015, 01:51 PM   #16
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pull the def fuse see what happens.
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Old 08-24-2015, 02:27 PM   #17
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Yeah I mean that could be the problem ,but I can leave my headlights on for hours and it still starts right up.. Seems like if you bought a brand new battery it would not die just from that being on, unless your alternator is trying to go bad and draining the power out of that new battery maybe??


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Old 08-24-2015, 02:33 PM   #18
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Yeah when I bought my car the alternator was junk, when I started driving it( I mean as soon as I left the car lot) the cars electrical started going dim and the whole car eventually just stalled out after idling really funny, I called the salesman who stated "it's just the battery" lol so he drove down and tried to jump me off and the car would not even start.. He even switched battery's and everything still did not start.. So long story ,but he had to buy me a brand new alternator and battery.. So I wouldn't think it'd be your alternator if the car is running fine once you jump it, never know though mine could have jut been completely done for lol


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I swear we must have bought our cars from the same lot but i wasn't so lucky and had to but the alt my self

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Old 08-24-2015, 04:36 PM   #19
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I swear we must have bought our cars from the same lot but i wasn't so lucky and had to but the alt my self

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Wow that sucks man !! Idk how much he spent ,but it had to be close to $300 or so and he had to pay a mechanic for labor. Got my car back that day though haven't had a problem like that since.. My wife says it was bad luck that my car "broke" the second I bought it ,but like you said I think it was good luck because if that would have happened a couple days later he wouldn't have touched my car more than likely. so I say good luck since I got a brand new battery, alternator, and a fixed car


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Old 08-24-2015, 04:56 PM   #20
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pull the def fuse see what happens.

Gonna try that tommorow


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Old 08-25-2015, 05:54 AM   #21
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I assume like the real world any creating of heat draws a good bit of power.

Hint: to help find a short/current draw put one of those light up automotive electrical testers in-line between the negative Batt cable and the neg. batt post. with everything off the light should be off. If it lights up start pulling fuses till it goes off and that is the ckt where you have power draw. You can NOT run the car like this but for current drains it's a good trick.
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Old 08-25-2015, 02:12 PM   #22
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It's the defroster I had the car off for 30 mins and it was still heating up the back window so until I have time to fully look into it. Does anyone know where the fuse is and number for the rear defroster just gonna pull it


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Old 08-25-2015, 04:58 PM   #23
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You should be able to pull up a chart on google of your fuse layout and it will have the one you need circled.. That's what I done when I needed to find the one for my fuel pump


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Old 08-25-2015, 05:33 PM   #24
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Yup I found it


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Old 08-25-2015, 05:48 PM   #25
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Good deal.. Hopefully it fixes everything


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Old 08-25-2015, 05:52 PM   #26
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Recheck your battery connections.
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Old 08-25-2015, 09:55 PM   #27
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Will check those connections in the morning when I pull the fuse


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Old 08-26-2015, 12:53 AM   #28
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Car won't start without jump after sitting

Get a voltage tester and test the alternator while the car is running. Then after you shut the engine off test the battery. If the battery isn't in the 16-16.4v range then it isn't being charged properly.


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Old 08-26-2015, 05:31 AM   #29
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^^^those #'s are high.

12.6 is normal with fully charged batt (car off)

Charging is done around 14.0
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Old 08-26-2015, 11:28 AM   #30
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How bad is overcharging?

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Old 08-26-2015, 11:33 AM   #31
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depends....is voltage just running high cause your batt is real low? or does it keep charging and cook your battery. Why do you think it's overcharging?
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Old 08-26-2015, 12:37 PM   #32
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That was in my last car. The guy at autozone said it was overcharging but that car had way more problems

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Old 08-26-2015, 12:49 PM   #33
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I found out what the problem was! when the guy swapped the car he some how hooked up the rear defrost button where it was still powering the window when the car was off. I pulled the fuse and started the car up a few hours later and she cranked right up. Still gonna test the alternator and even tho I bought the battery on Sunday still going to have that checked being the defroster was draining it ever since Sunday.


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Old 08-26-2015, 05:15 PM   #34
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Sounds like alternator


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Old 08-26-2015, 05:50 PM   #35
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Gonna check that tonite Click image for larger version

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