Unfasten the negative battery cable of the Nissan Altima from the battery post with an open-end wrench. Locate the alternator near the front of the engine compartment on the passenger side. Loosen the bolts that are securing the alternator to the engine and bracket with a socket wrench just enough to be able to move the alternator on the bracket. Slide the alternator forward on the bracket and remove the alternator belt from the pulley.
Detach the electrical wiring plug from the alternator socket, pulling it straight up by hand. Unfasten the ground wire and electrical wiring connector from the alternator, detaching the nuts securing the wires to the alternator using a nut driver. Unfasten the bolts securing the alternator to the engine with a socket wrench and slide them out by hand. Lift the alternator off the bracket and remove it from the engine compartment.
Place the new alternator on the bracket and secure it with the bolts, tightening them just enough so the alternator can still move on the bracket. I can't really see where the other pulleys are from above the engine. Thanks Was this answer. Hi frankpier,Welcome to 2carpros and TY for the donation. Remove upper radiator hose. Release accelerator wire.
Back off adjustment bolt, remove belt. Remove three generator bolts and generator. I have been having and alternator issue. I replaced one and it was putting out Does it sound like I am having bad luck with alternators or, does it sound like there is a bigger problem? Thank you in advance Was this answer. Try chaging your battery then have it tested, including a load test. It sounds like a bad cell or sulfated.
Have it load tested, you can't test it while it's on a charger the initial load ahsto be taken off of it. If it's reading below Most of the time, when replacing an alternator, the alternator itself is relatively affordable. Here are the most common symptoms of a bad alternator in a Nissan Altima:.
The battery light is designed to tell you that there is not enough voltage to properly charge the battery, or that the battery itself is not holding the proper voltage. In rare occasions the service engine soon light may light up. Outside of the battery warning light, a dead battery is the most common symptom of a bad alternator. As the alternator can no longer supply your Altima with an adequate power supply, it will begin to feed off of the reserve in the battery.
Once this battery reserve hits a certain level, the vehicle will begin to run erratically and will no longer start when the key is turned. Often, the battery light will come on, the alternator gets replaced, and then a few days later the vehicle dies.
Nearly any auto parts store will test your battery for free to see if it holds a charge. As the ignition system is no longer able to produce a full powered spark, the engine will begin to sputter and stall. If you find yourself in a position where you suspect that your voltage is dropping, but you need to safely get off the highway, turn off everything that you possibly can.
That will allow all of the limited voltage in the battery to go to the ignition system. Dimming headlights are one of the most common signs of a bad alternator in the Nissan Altima. As your Altima begins to eat through the voltage stored in the battery, the headlights will begin to fade. Many accessories in a vehicle require quite a bit of voltage.
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