My 97 nissan sentra needed a new alternator so after I replace it went to drive it and most of my lights dont work as well as no radio a/c and power locks and windows what would cause this issue?
Did you remember the 10mm nut and battery cable connection? also the regulator plug connections to the alternator unit? check also small fuse box under hood near battery tray, for 7.5amp fuse labeld alt-s is the fan belt tight?
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My wife and I have owned three 1994 Sentra cars. One of them went through batteries and alternators like crazy. Last time the 1-year old battery died, I replaced it and went straight to an auto electric shop. The technician found the alternator was putting out about 77 amps the entire time the engine was running (factory alternators are rated for 80 amps, but only when charging nearly-dead batteries). He also found that the harness running to the alternator was hot enough to scald you if you touched it. Miraculously, I found a factory NOS harness on eBay and bought it. Easy to put in, and the car went from a maximum charging voltage of about 13.1 volts, to a MCV of up to 14.1! Haven't replaced a battery or alternator on it since. Hope this helps someone...
Did you have the battery tested? Check it for water, voltage, and make sure the terminals are clean. It will run the lights dirty, but won't crank over the engine. You need to get a wire brush on them things and scrape them clean. The alternator might be bad, Just because it is new doesn't mean it is good. Check the battery, then check to see if the alternator is charging the battery, the voltage should go up with it running. Hope this helps.
Your problem is pointing to the alternator. Since you say the alternator is only a year old, the I would check the tension on the belt (deflection should be about 1/2 an inch), and the belt itself. Your problem most likely lies in either the belt, belt tensioner (if applicable), or alternator.
These lights will come on if your alternator isn't charging fully. With a multi meter test your voltage at the battery with the engine running. The voltage should be above 14 volts. If it is below 14 you will need to replace the alternator.
are you sure the alternator is good? because it could be tricky ...The only other thing is the wire running back to battery pack to charge battery maybe disconnected
I took my pathfinder to U-HAUL and asked them to check the towing lights. There was a pinched wire by my tail light and they cut it and changed it out for me, it was $5. I am so glad that I didnt take it to Nissan. My second step was going to be getting a new dimmer switch..but the guy who worked on my car said that wouldnt be the problem. He also told me that replacing a fuse that kept blowing out was dangerous and after the first time to get it checked out. Learn something new every day!!
i would check the connectors under the dash they have a tendancy to get loose are get hot and short a fuse this is most likely the problem...please rate this....
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