No Juice this morning - Nissan : Datsun ZCar forum :Nissan Z Forum: 240Z to 370Z
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post #1 of 57 (permalink) Old 02-25-2016, 01:16 PM Thread Starter
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No Juice this morning

Been driving the Z last couple of days as we had not had any snow fall in a week and the roads are dry.

Last night had to park outside. This morning 25 degrees. Get in the car turn the key and nothing. In the past jiggling the battery terminal cables would get it going. Today no dice.

Drove the Frontier to work instead.

Oh the joys of owning a 25 year old sports cars.

90 2+2
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post #2 of 57 (permalink) Old 02-25-2016, 07:46 PM
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don't blame the car. the owner who thinks jiggling battery cables instead of putting on good terminals, keeping them clear of corrosion and properly tightened is the cause of that malfunction. Get a new battery while you are at it.

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post #3 of 57 (permalink) Old 02-26-2016, 10:13 AM
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I hear ya....did an oil change in December before the Z's winter nap and noticed the rear crank seal was leaking a little bit. Darnit! Replaced it 6 years ago but seems just like yesterday....

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'91 2+2 101k miles, Chromed OEM Wheels, Chrome Plenum, JSPEC Clear Corners, Toyo Proxes 4's, U/D Pulley, Custom Mod'd Control Pods - White LED Lighting with Blue LED Indicators

Last edited by jzack; 02-26-2016 at 10:21 AM.
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post #4 of 57 (permalink) Old 02-26-2016, 02:25 PM
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I betcha.....

Step one: Get a battery terminal brush, remove cables, clean both cable clamps and battery terminals, re-install cables.

Step two: Start car. If no start.....

Step three: Mount battery charger and charge battery. (Battery dead due to cable oxidation, therefore no charge.)

Step four: Start car.
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post #5 of 57 (permalink) Old 03-01-2016, 06:19 PM Thread Starter
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Went home that night and connected the Z to my trucks battery. After a minute or two climb in and fired the Z up. Great.

Disconnect the jumpers and climb inside to move it, and she dies. Try it again and it dies again. Weird I recall that you can run this car without a battery.

I had thrown in a spare deep cycle marine battery in the back seat earlier that week. So I ran the jumpers out the window into the cab, started it is up and moved it into its parking spot. Went to go get my multimeter to test the charging system. Unwind the probes and one of them pulls away from the wire, arhhh.

Parked and have not messed with it since.

I know how you feel JZACK. I have been replacing items that I have once fixed in the past. Luckily my RMS has not started leaking (again). But I did recently find a hole in the butt pad of my leather seat. The seats I recovered about 8 years ago.

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post #6 of 57 (permalink) Old 03-01-2016, 10:30 PM
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Sounds like your alty may be on the fritz and has taken out the battery. Run a voltage test with the car idling and headlights on - look for ~13.8v or higher. Bad alty (diode bridge) could be discharging the battery after a run.

Other thing to check if voltage check looks ok...how much current is the car drawing from the battery when the car is off. If more than about .050 amps ( 50 mA) ...there's an issue.

+++ John's NJ Ride +++
'91 2+2 101k miles, Chromed OEM Wheels, Chrome Plenum, JSPEC Clear Corners, Toyo Proxes 4's, U/D Pulley, Custom Mod'd Control Pods - White LED Lighting with Blue LED Indicators

Last edited by jzack; 03-01-2016 at 10:36 PM.
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post #7 of 57 (permalink) Old 03-05-2016, 02:10 PM
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same here guys - pull the old girl out of winter slumber and 2 miles down the road - christmas tree on the dash and stumbling. think the alternator is going out..
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post #8 of 57 (permalink) Old 03-07-2016, 03:44 PM Thread Starter
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I have not touched anything on the car. Been snowing and the Z will be in slumber for a bit longer. I did pull the battery though. Turns out the battery is 10 years old. Surrpised it lasted so long. And with no signs of weakening till it died completely. It is SOOOO dead that it won't read ANYTHING on the voltmeter. It will not take a charge at all.

I have seen this before where a totally dead battery will not allow the car to run. I suspect if I pulled the battery and left the terminals dangling the car would run.

Oh well. I will revisit this in a MONTH or so. Till then I just did this.

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post #9 of 57 (permalink) Old 03-14-2016, 06:52 PM Thread Starter
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Started the car on friday with a jump from my deep cycle battery. It was a bit low on voltage about 11.8. Car starts and voltage jumps up a volt to 12.9 or so. That's pretty low. Unhooked the jumpers and the car dies.

Messing around with the battery, it looks like it is taking a decent charge.

Things are pointing towards bad alternator.

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post #10 of 57 (permalink) Old 03-15-2016, 10:44 AM
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When I replaced my alty in 2012 I decided to go with a brand new 90 Amp TT unit for my NA. Bought this from DB Electrical: http://www.ebay.com/itm/ALTERNATOR-f...NWsmwp&vxp=mtr

It's worked great. At the time it was $112 so that seemed like a good deal for new. Looks like the price has gone up a bit. My old alty had been rebuilt but since it failed again after 6 or so years decided new was better.

+++ John's NJ Ride +++
'91 2+2 101k miles, Chromed OEM Wheels, Chrome Plenum, JSPEC Clear Corners, Toyo Proxes 4's, U/D Pulley, Custom Mod'd Control Pods - White LED Lighting with Blue LED Indicators

Last edited by jzack; 03-15-2016 at 10:46 AM.
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