Question about 1989 Buick Park Avenue

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How do i find out if voltage regulator is charging on my 1989 buick park avenue electra

I have new battery a new alternator but something is draining the power from my battery

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  • carol
    carol Feb 28, 2012

    in order for me too keep the batterie from draining i disconect the battery at night and copnnect it when i want to drive if i leave it connected after a day or two i have to replace battery and walmart is tired of seeing me i took lights out of doors trunk and hood can anyone help i took the radio out but i just recently put it back in needed music

  • carol
    carol Feb 28, 2012

    if someone else has had this problem let me know what you did

  • carol
    carol Feb 29, 2012

    thanks for the advice i do appreciate the help



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In my case the switch(off/on)was not turning off all the way sooo,i just replace the sw.I did the same thing as you w/battery.Sometimes just think about the last thing you messed with-go backwards on &back.

Posted on Feb 29, 2012

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Posted on Jan 02, 2017

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SOURCE: need to know where the voltage regulator is on a


Posted on Sep 27, 2009

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SOURCE: 1989 buick park avenue Cannot get power window

These are a pain to do so you will need to remove the small trim peice behind the inside door handle to get to a small screw holding the door trim on. Next retaining clips hold on the sides and bottom door trim. Some screws may be on the bottom too on some models. using an old tablr fork helps out by removing the center fork prongs which will be used as a pry bar to pry up on these clips. Once removed you can gain access to the switch. Some models will let you pry out the switch panel instead of removing the whole door trim. If the switch is mounted in a panel that is separate from the door trim it will come out that way separately

Posted on Apr 17, 2010

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SOURCE: fusebox diagram for 1989 buick park avenue

hi try Buick car owners club or an auto electrician that specializes in Buick is guaranteed to have a copy hope this helps glenn.......

Posted on Nov 10, 2008

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SOURCE: how to change a voltage regulator for 95 buick

It's part of the alternator assembly.

Posted on Nov 03, 2009

  • 749 Answers

SOURCE: alternator is good brand new battery still want

If you have a test light available disconnect the negative cable and connect the test light to the cable and to the battery.If it lights up you have a parasitic load.Something is using power when it shouldn't be. A very dim light or acceptable parasitic draw is about. .015 amps depending on vehicle options it could be all the way up .025amps. If the test light is pretty bright it has a large load pulling it down. Finding parasitic draws can be quite time consuming. You can leave the test light connected and start pulling fuses one at a time till the light goes out or gets very dim. This can help you find what circuit is causing the draw. Once you find that particular circuit you will need to find out what services that circuit supports. Example the cigarette lighter may run the accessory lights such as the dome. You will need to find out what is on the circuit to start figuring out which component is dragging the battery down.

Posted on Jul 20, 2010

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The voltage regulator is built in to the alternator. It's better to replace the whole alternator then to just replace the regulator. The regulator and other parts like the bearing all have about the same amount of life time, unless the battery is weak which can put extra taxes on the regulator. Good luck and hope this helps.

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Sounds like the alternator/voltage regulator. Take the car to an autoparts store and have them test the alternator output. Most parts stores will test the alternator for free. There is a definite charging problem if it has killed two batteries. Sorry for your trouble and I hope this helped. Best wishes.

Sep 09, 2009 | 1995 Buick Park Avenue

1 Answer

Voltage problem on 91 Buick Park Avenue

sounds like the voltage regulator is not working, at the terminals you tested voltage should be above 13.6,also make sure you have good grounds,these should be tested with an ohm meter,meter should read zero,no resistance, if you need more help get back to me and we'll do some other tests,please rate my fix as i strive to be the best

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