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#4529785 - 09/29/17 08:07 PM No Crank - No Turnover
Merkava_4 Offline


Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
2000 Buick LeSabre

No crank when turning the key. Battery is at 12.23 Volts across the battery terminals.

I have the battery charger hooked up to it right now and the battery is pulling in 6 Amps. If the battery was fully charged, it wouldn't be pulling any current, correct ?

The battery normally has 14.7 Volts when the engine is running.

Is 12.23 Volts not enough to turn the engine over ?

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#4529793 - 09/29/17 08:15 PM Re: No Crank - No Turnover [Re: Merkava_4]
mk378 Offline


Registered: 09/27/15
Posts: 1421
Loc: USA
That should be enough to start. The voltage may go away under load though. Or it could be a bad connection somewhere between the battery and the starter (on either the power or the ground side).

Measure at the starter (big wire to the battery to starter ground), while someone turns the key. The voltage should stay up around 12. Then check the small wire at the starter to starter ground. It should become live when the key is turned. If both of those pass, the starter is probably bad.

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#4529794 - 09/29/17 08:16 PM Re: No Crank - No Turnover [Re: Merkava_4]
bbhero Offline


Registered: 03/20/15
Posts: 4628
Loc: Virginia
Maybe but I wonder about it buddy. It is definitely hurting at 12.2. I know my Ford Fusion had trouble starting at that voltage. It would start and then not start... Battery had 66k miles worth of starts on it. Replaced it and it was done after that. And yeah it is pulling those amps it is certainly down on charge. How old is the battery man??


Edited by bbhero (09/29/17 08:17 PM)
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#4529798 - 09/29/17 08:20 PM Re: No Crank - No Turnover [Re: Merkava_4]
andyd Offline


Registered: 09/25/04
Posts: 7158
Loc: Marshfield , MA
Evidently. 12.7 is 100% I would give it at least 1/2 an hour.
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#4529799 - 09/29/17 08:21 PM Re: No Crank - No Turnover [Re: Merkava_4]
bbhero Offline


Registered: 03/20/15
Posts: 4628
Loc: Virginia
My lady had a friend who was going on vacation and I just checked her open battery voltage. It was 12.45. Their vehicle did not start three times on that trip... I had a feeling that the battery was shaky. It was 6 yrs old.
_________________________
Nissan Altima 3.5 Coupe Valvoline Advanced Full Synthetic 5w30 Federated Auto 4612ex
"Treat your family like your friends and treat your friends like your family."

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#4529834 - 09/29/17 09:03 PM Re: No Crank - No Turnover [Re: Merkava_4]
SnowDrifter Offline


Registered: 08/24/14
Posts: 391
Loc: WA
Is your starter relay getting power? Easy check to see if it's upstream or down stream

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#4529846 - 09/29/17 09:20 PM Re: No Crank - No Turnover [Re: Merkava_4]
Mr Nice Offline


Registered: 09/12/04
Posts: 21203
Loc: Orlando, FL
I just replaced the battery in my mom's car as it was 5 years old and was getting harder to start. Didn't want her to get stranded and for $100 it was a wise decision.

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#4529849 - 09/29/17 09:24 PM Re: No Crank - No Turnover [Re: Merkava_4]
oldhp Offline


Registered: 06/28/12
Posts: 1629
Loc: USA
Turn the headlights on, turn key, lights go out or stay bright? Lights out? Bad battery or connection. Lights stay on, don't dim? Starter not being engaged, bad starter solenoid, bad neutral safety switch, or bad ignition switch. This check works 99% of the time.
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#4529852 - 09/29/17 09:27 PM Re: No Crank - No Turnover [Re: mk378]
Colt45ws Offline


Registered: 08/15/06
Posts: 9648
Loc: Central Washington
Originally Posted By: mk378
That should be enough to start. The voltage may go away under load though. Or it could be a bad connection somewhere between the battery and the starter (on either the power or the ground side).

Measure at the starter (big wire to the battery to starter ground), while someone turns the key. The voltage should stay up around 12. Then check the small wire at the starter to starter ground. It should become live when the key is turned. If both of those pass, the starter is probably bad.

Yes, check for voltage at the big terminal, and the little terminal while someone holds the key in 'Start'
If they are both at battery voltage, then the starter is bad.

Sometimes, like 90% of the time, tapping the starter with a hammer will make it work again. But thats a 'get it home' or 'get it to the mechanics' without a tow bill trick.
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2002 Ford Crown Vic PI 207k, Ex-Kootenai County, ID Unit #42
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#4529853 - 09/29/17 09:27 PM Re: No Crank - No Turnover [Re: oldhp]
bbhero Offline


Registered: 03/20/15
Posts: 4628
Loc: Virginia
Very very good post oldhp.

And Mr. Nice that is a very good way to go. That's the way I do that as well.
_________________________
Nissan Altima 3.5 Coupe Valvoline Advanced Full Synthetic 5w30 Federated Auto 4612ex
"Treat your family like your friends and treat your friends like your family."

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#4529860 - 09/29/17 09:34 PM Re: No Crank - No Turnover [Re: Merkava_4]
Blkstanger Offline


Registered: 08/13/11
Posts: 1948
Loc: Lakeside, CA
Try moving the shifter to neutral. It's always worth a try.
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99 Jeep WJ 4.7 185,000 Maxlife 10w30, Fram Ultra.

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#4529893 - 09/29/17 10:26 PM Re: No Crank - No Turnover [Re: Merkava_4]
JMJNet Offline


Registered: 09/06/07
Posts: 934
Loc: TX, USA
Load test the battery.
Voltage test is non-conclusive in terms of battery health.

If you don't have the load tester, part store will be happy to help you.

If you have a nearby Harbor Freight, spending $20 will help you diagnose the battery issue in the future also.


Edited by JMJNet (09/29/17 10:27 PM)
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#4529913 - 09/29/17 10:49 PM Re: No Crank - No Turnover [Re: Merkava_4]
JimPghPA Offline


Registered: 08/22/09
Posts: 3859
Loc: Pittsburgh,PA U.S.A.
Check the battery voltage when it has a load applied to it. Turn on the head-lights, and interior lights and check the battery voltage with that load on it. It should be above 11.0 Volts.

If you have someone to help you, read the battery voltage while someone turns the key to start.
_________________________
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#4529920 - 09/29/17 11:02 PM Re: No Crank - No Turnover [Re: JimPghPA]
Merkava_4 Offline


Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
All is well now fellas. Thanks for all your replies. smile

Apparently, 12.23 Volts is not enough to turn the engine over -- but 13.85 Volts is.

After startup, the battery was back to 14.5 Volts with a little jolt from the alternator.

Earlier today, I put the car in neutral so that I could roll the car out of the garage for cleaning the garage. I must've either left something on, or didn't put the ignition tumbler back to the full off position.

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#4530668 - 09/30/17 09:42 PM Re: No Crank - No Turnover [Re: Merkava_4]
RemingtonHill Offline


Registered: 09/13/17
Posts: 24
Loc: Austin, Texas
You more than likely need a new battery. How old is it?


Edited by RemingtonHill (09/30/17 09:43 PM)
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