I just replaced the alternator on my 1989 Nissan Maxima, but I cannot roll up my power windows and my radio does'nt come on. I checked the fuses and they appear to be okay. Am I missing something? Please help, its raining and windows are down. Thank you
the driver and passanger windows only go up half way
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Here is a link to a factory repair manual for model year 94, it is the same car as fact as mechanical go and electrical systems, look up the wiring and find the common power source for the things that don't work.. You will need a RAR file extractor tool, you can download one free on the internet. http://diyservicemanuals.com/nissan-maxima-service-repair-manuals
First off - 125K mi is nothing on that car (as long as you maintain it). The alternator is actually also the voltage regulator and this aspect of the alternator frequently fails before the actual alternator itself does and causes irregular voltage - so it makes sense you drove without the battery connected but you probably were having irregular power instead of a nice steady 14V (the other thing to know is that even if they do show 14V all the time the amperage may differ, both problems = change the alternator).
TURN OFF RADIO TO KEEP FROM LOSING RADIO CODE.THEN YOU REMOVE NEGATIVE BATTERY CABLE.DISCONNECT THE 2 LEAD WIRES AND HARNESS CONECTOR FROM ALTERNATOR LOOSEN THE DRIVE BELT ADJUSTING BOLT AND REMOVE THE BELT. UNSCREW THE ALTERNATOR ATTACHING BOLTS AND REMOVE THE ALTERNATOR FROM VECHICLE.VISA VERSA PUT EVERY THING BACK.AND ADJUST ALTERNATOR BELT TENSION.WARNING DONT PUT TOO MUCH TENSION ON BELT.BECAUSE YOU WILL DAMAGE ALTERNATOR PULLEY BEARING.
You do need an alternator. Nissan has a campaign on Maxima alternator in certain years such as 96-98 I believe. Go to your friendly Nissan dealer abd have them punch your VIN number into the NNA net. they will know and that will tell them if your vehicle applies by the VIN. I have seen the alternator on fire. There was fire inside of the alternator. Have it checked or the car can catch on fire.