Battery keeps draining

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
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Ziggy1621
Posts: 1137
Joined: Sun Jun 10, 2012 5:57 pm
Car: '90 Z32 TT (Shibui)
'90 Z32 2+0 NA
'68 311 Roadster
2004 Rx330
2011 BMW 550i (TT)
Location: Cocoa, Florida
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Got my 92 NA Auto for sale, and if it's not cranked every day, the battery is dead. Brand new battery, no lights on dash, dome, door, etc. any ideas where to start?


XX7R
Posts: 81
Joined: Fri Dec 23, 2011 3:46 pm
Car: 1990 300ZX TT

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Could be a shorted wire somewhere. Mine was having the exact same problem and it ended up being a couple mangled wires. If thats not it get out a trickle charger and put it on the battery overnight

nismo528
Posts: 7
Joined: Sun Aug 26, 2012 4:53 pm
Car: 1990 nissan 300zx n/a
Location: Appomattox, Virginia
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XX7R has a good point, you may also want to check your ground wire, and any corrosion on the battery posts themselves. If the battery cables are rusty at the connection could also cause improper charging and the battery drain as it may not be charging enough while it is running for it to hold up over night or a couple days. I am just now learning about these cars, so I can't say of any known issues specific to these cars, but I had a similar issue with my old truck, turned out to be the battery cables were rusty at the connectors. good luck with it.

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t.mcginley.jr
Posts: 1547
Joined: Fri Jun 01, 2012 5:50 am
Car: 2002 Nissan Altima SE 3.5
1990 Nissan 300ZX NA 2+0
1966 Ford Mustang
Location: New Jersey, USA

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^nailed it

Constant battery draining is usually a bad ground somewhere that is constantly drawing voltage even with the car off... this goes for all cars not just these ones. The bad part is you will need to check ALL of the grounds with a volt meter

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Ziggy1621
Posts: 1137
Joined: Sun Jun 10, 2012 5:57 pm
Car: '90 Z32 TT (Shibui)
'90 Z32 2+0 NA
'68 311 Roadster
2004 Rx330
2011 BMW 550i (TT)
Location: Cocoa, Florida
Contact:

Post

thanks guys, guess I got work to do!


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