Dash warning lights all came on

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
JDMAX28
Posts: 5
Joined: Sun Feb 15, 2015 7:42 pm
Car: 1991 300zx na

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So I was driving to work today and while driving, my battery light, brake light, and my anti lock light came on, wth would make all of those come on at the same time?


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Ace2cool
Posts: 11650
Joined: Sun Apr 20, 2008 5:21 pm
Car: 1991 Nissan 300ZX TT
1966 Datsun Fairlady 1600
2005 Suzuki GSX-R 600
1974 Honda CB550 Four
2009 Ford F150 Lariat
Location: Murfreesboro, TN

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Dead alternator.

EDIT: Or shorted/disconnected wiring on the charging circuit.

JDMAX28
Posts: 5
Joined: Sun Feb 15, 2015 7:42 pm
Car: 1991 300zx na

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word, thanks man, ya i took it in after work and found out the battery was pretty much toast but then ran into another issue, the harmonic balancer worked itself loose so hopefully all i need is a new balancer and battery, if the the balancer is toast hopefully it didn't jack up the crankshaft or else im doomed

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Ace2cool
Posts: 11650
Joined: Sun Apr 20, 2008 5:21 pm
Car: 1991 Nissan 300ZX TT
1966 Datsun Fairlady 1600
2005 Suzuki GSX-R 600
1974 Honda CB550 Four
2009 Ford F150 Lariat
Location: Murfreesboro, TN

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Oh wow. Just for terminology's sake, these technically don't have a harmonic balancer. The pulley has a built in dampener, which isn't really the same thing. These are actually very balanced V6s. If it's toast though, I'd go ahead and upgrade to an underdrive pulley and use an overdrive water pump pulley. Must not have been torqued properly though. I've never seen one of those crank bolts come loose. Make sure the timing gear didn't walk forward at all too, cause a weak timing belt is sure to spell doom.

JDMAX28
Posts: 5
Joined: Sun Feb 15, 2015 7:42 pm
Car: 1991 300zx na

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ahhh gotcha, ya man im new to the Z's lol but thanks alot for the help and information man


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