Question about 1985 Nissan 300ZX
I took my alternator to auto zone and got it tested last year, and it said that it was working fine.
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Posted on Jan 02, 2017
Did you hear the one about the Terrano with a charging problem?
Just fix it by replacing the thermostat!
Seriously - check your temperature gauge does it take ages for the needle to barely get off cold? (and is the heater useless?)
The needle should get to just below half way in 2 or 3 minutes.
If the thermostat is stuck open, then the engine does not get up to temperature.
The glow plug control senses the engine temperature is cold, so the glow plugs stay on for an extended period of time (sometimes 10 to 15 minutes) - short trips particularly in winter, with more headlight driving - the alternator can't keep up with the current being drawn off and from time to time you will end up with a flat battery!
A thermostat is cheap, and easy to replace (three bolts and about a half litre of coolant - I pumped the coolant from the top of the radiator, and didn't spill a drop when the thermostat housing was removed).
Sure enough, as the engine temperature reached about 50C, the glow plugs turned off.
Posted on Jul 21, 2009
that seems very, very low. almost what the battery voltage is supposed to be. actually i would say that's not charging and you need to replace the alternator. normal voltage output is 13.5-15 volts
Posted on Mar 05, 2010
check for an inline fuse between the alt and battery,otherwise take a jumper cable from the positive terminal on the battery to the alt. battery terminal output direct and now check for charge
Posted on Mar 13, 2010
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