Alternator/charging problems - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

l2ich · 09-23-2012, 02:34 PM

Was wondering if there was any one out there that could help me out. Been battling with this car for the past while.

Car died on the road one day, lost all my power. Thought it was the alternator. Replaced it with a new alternator. No, I have not gotten the old one and the new one tested, but I will soon.

I actually installed two new alternators, the first one I got a battery light that came on and I just returned that alternator and got a new one. The new one, no battery light comes on but I'm still having issues.

When I first start the car, the voltage across the battery terminals will be 14.3 and steady. I'll turn on my lights, turn on the radio, and it'll hold not too bad. But after I let the car sit for another 5 or 10 minutes, the voltages begin to drop, and if I were to start driving or turning on the lights or radio, the voltage never recovers. I'll drive around the block and the reading will be down to 11.x or down in the 10s.

I've checked scrubbed and cleaned the negative terminal connectors to the battery and the ground. The battery tray is pretty rusty and I'm wondering if this may be a problem?

Anyone have some suggestions?

future · 09-23-2012, 03:00 PM

Put a new battery or get it tested

rb25_s13*CHUKI · 09-23-2012, 03:00 PM

battery 1 million percent

Hardie · 09-23-2012, 09:10 PM

Yep sounds like battery, I had similar problem turned out my brand new battery was a cell down.

kennedy8383 · 09-24-2012, 07:52 PM

Go tests your alternator at auto zone.. Make sure they tests everything full working.. Alternator pump all the electro power for the car...

09-23-2012, 02:34 PM	#1
l2ich Join Date: Apr 2010 Location: Edmonton Posts: 1 Trader Rating: (0) Feedback Score: 0 reviews	Alternator/charging problems Was wondering if there was any one out there that could help me out. Been battling with this car for the past while. Car died on the road one day, lost all my power. Thought it was the alternator. Replaced it with a new alternator. No, I have not gotten the old one and the new one tested, but I will soon. I actually installed two new alternators, the first one I got a battery light that came on and I just returned that alternator and got a new one. The new one, no battery light comes on but I'm still having issues. When I first start the car, the voltage across the battery terminals will be 14.3 and steady. I'll turn on my lights, turn on the radio, and it'll hold not too bad. But after I let the car sit for another 5 or 10 minutes, the voltages begin to drop, and if I were to start driving or turning on the lights or radio, the voltage never recovers. I'll drive around the block and the reading will be down to 11.x or down in the 10s. I've checked scrubbed and cleaned the negative terminal connectors to the battery and the ground. The battery tray is pretty rusty and I'm wondering if this may be a problem? Anyone have some suggestions?

09-23-2012, 03:00 PM	#3
rb25_s13*CHUKI Post Whore! Join Date: Mar 2007 Location: Cali Age: 36 Posts: 2,759 Trader Rating: (16) Feedback Score: 16 reviews	battery 1 million percent __________________ Obliterate

09-23-2012, 09:10 PM	#4
Hardie Leaky Injector Join Date: Sep 2012 Location: Perth Australia Age: 35 Posts: 62 Trader Rating: (0) Feedback Score: 0 reviews	Yep sounds like battery, I had similar problem turned out my brand new battery was a cell down.

09-24-2012, 07:52 PM	#5
kennedy8383 Zilvia Member Join Date: Feb 2012 Location: Kanada Age: 41 Posts: 208 Trader Rating: (1) Feedback Score: 1 reviews	Go tests your alternator at auto zone.. Make sure they tests everything full working.. Alternator pump all the electro power for the car...