Question about 1999 Nissan Altima
I had forgotten to disconnect the battery cable before taking out the old alternator. I accidentally arced across some metal, then removed cable. Now after the new one is in and I started the car, I have no warning lights on the dash, no tach,wipers, power windows, blower motors, and interior lights. I still have radio and headlights though. I've checked every fuse I could, including the main fuses, with a tester and none were bad. The car does stay running, but when I put my volt meter on the alternator it reads less than 1 volt. The altrnator I was replacing had just been installed 4 days ago, when my warning light on the dash came on again. When I tested the old one(4 days old) before removing, the voltage was fluctuating from less than 1 volt, up to about 11.5 volts, but never holding at the high end for more than a few seconds. When I told the guys at the parts store this, they just gave me a replacement. What could be wrong?
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Posted on Jan 02, 2017
SOURCE: Going through alternators
Hi there, I am a girl (i.e. not car savvy), but I have a 1998 Altima as well, and the first time (4 months ago) I noticed the brake and battery lights on simultaneously, I took it to a Nissan service shop. Everything seemed fine until about a month ago when the symptoms returned. I ignored the problem for 3 days and the car just stopped running, period. Took it back to the shop, figured out it was a fauly alternator, got it sorted, no problem. Today (1 month after replacement), I see the same bloody problem, and I'm taking it back to the shop in the morning. I am wondering... is it the alternator, or something connected to the alternator that is malfunctioning? The 2 alternators put in were "rebuilt" since they didn't have genuine Nissan alternators available. I really hope the dealers aren't taking me for a merry ride.
Posted on Sep 17, 2010
The two problems are more than likely related. Solve the voltage problem and the blower problem will disappear. Check for a slipping belt or an intermittent internal problem with the alternator. There could also be a wiring issue.
Posted on Jun 16, 2011
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If tightening the battery cables helped but did not fix, you may need to take the cables off and clean all the connections. If there is enough corrosion, it causes enough resistance to lower the voltage. Take the connections off and clean the cable and battery with a wire brush. Apply a coat of grease and put it back together. If this battery is a post type there are cleaning tools that have a post cleaner and a brush the will clean the inside of the cable clamp. You can find there at most any place that sells car batteries. They are cheap and well worth having. If it is a bolt on connection you should be able to clean with a regular wire brush. Clean until all the metal is shinny. There are also some spray cleaners available. When you disconnect the battery, always disconnect the positive post first. This ensures that you don't accidentally touch the cables and cause a short. Reverse the procedure when you reconnect the cables. If this doesn't help, have the battery checked. Good luck.
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