Question about 2002 Nissan Pathfinder
2003 nissan Pathfinder:
for days the battery is fine and then out of the blue the battery is dead, a jump gets me going and it will work fine for days, maybe months, then the battery will die again for no reason.
This fix only applies to diesel engines.
I believe this is a common problem. I'm on my third alternator and third battery!
And there is NOTHING wrong with either of them.
I have just today checked if the glow plugs were turning off, and hello! they are staying on! and sucking more juice than the alternator can supply.
This can be easily checked - either with a multimeter at the glow plug rail, or multimeter or LED battery/alternator tester on the battery locate the 80amp fuse for the glow plugs and pull the fuse while the engine is running - my bet is the battery will instantly be charging normally, and show low volts when the fuse is reinserted.
On my Terrano, the fuse box is half way between the battery and the fire-wall.
The glow plug relay is between the battery and the fuse box - the relay clicks in and out with the fuse removal, which makes me suspect the glow plug controller.
I haven't located the controller yet.
The American workshop manual does not cover the diesel engine model.
The Nissan diesel engine manual does not cover the electrics (glow plugs).
If I can not locate or repair the glow plug controller, I will simply add a small electrical kit-set timer, at the fuse/relay, to turn off 15 to 30 seconds after the ignition is turned on.
Hope this gives an answer to this frustrating (and expensive) problem.
Posted on Jul 18, 2009
This is not an easy repair. The system has a short or draw on the battery that could be located anywhere. I would take to a good local mechanic. The time involved could be very high in excess of 4 hours just to find the problem.
So taking to a shop you can trust can save you a lot of time. I know auto zone does some basic test to check the charging system. The alternator and starting system to see if there is correct out put on the alternator and if there is a draw on the starter for free. I guess that would be a good place to start.
Posted on Jul 16, 2009
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Posted on Jan 02, 2017
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