Z intermittently completely dead -- electrical gremlins

jchammond · 08-14-2017, 08:00 PM

I'd test battery & connections.
Put a volt meter on it & read surface charge; 12.60V is fully charged,
With meter connected-move it in a position where you can read it & turn on ignition.
In this warm of weather; battery voltage shouldn't drop below 10.00 volts while cranking.
But sounds like you have either a failed battery or corroded or loose connection.

barncobob · 08-14-2017, 08:12 PM

most likely battery/loose connections..if battery is older than say 4 years, get a new one, cheap fix

chillz · 08-14-2017, 08:41 PM

Battery is fairly new -- and it starts fine when she's not comatose, so it's not the battery, per se. Connections appear/feel OK, but anything is possible. It's weird that both times she became comatose immediately after the door was opened. Seems like it might be a short/ computer issue. Anyway, if she doesn't start tomorrow morning, she's being towed to the dealer.

onzedge · 11-20-2017, 10:11 AM

Quote:

Originally Posted by jchammond

I'd test battery & connections.
Put a volt meter on it & read surface charge; 12.60V is fully charged,
With meter connected-move it in a position where you can read it & turn on ignition.
In this warm of weather; battery voltage shouldn't drop below 10.00 volts while cranking.
But sounds like you have either a failed battery or corroded or loose connection.

08-14-2017, 08:00 PM	#1 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 58 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684395	I'd test battery & connections. Put a volt meter on it & read surface charge; 12.60V is fully charged, With meter connected-move it in a position where you can read it & turn on ignition. In this warm of weather; battery voltage shouldn't drop below 10.00 volts while cranking. But sounds like you have either a failed battery or corroded or loose connection. onzedge and Ghostvette like this. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html Last edited by jchammond; 08-14-2017 at 08:01 PM. Reason: Misspelled

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08-14-2017, 08:12 PM	#2 (permalink)
barncobob A True Z Fanatic Join Date: Sep 2015 Location: hangtown, CA Posts: 1,164 Drives: 16 370Z auto Rep Power: 590	most likely battery/loose connections..if battery is older than say 4 years, get a new one, cheap fix

08-14-2017, 08:41 PM	#3 (permalink)
chillz Base Member Join Date: Dec 2011 Location: GTA Posts: 44 Drives: 09 370Z MB M6 Rep Power: 14	Battery is fairly new -- and it starts fine when she's not comatose, so it's not the battery, per se. Connections appear/feel OK, but anything is possible. It's weird that both times she became comatose immediately after the door was opened. Seems like it might be a short/ computer issue. Anyway, if she doesn't start tomorrow morning, she's being towed to the dealer.