Question about 1989 Buick LeSabre

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What are all the things i got to do to figure out why the battery keeps dieing in my 89 buick lesabre. i have already bought a new alternator.

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Please see my tip at . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

Posted on Oct 12, 2010


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Battery alternator

I should tell you running the car with the battery disconnected can cook the alternator and the engine computer. The alternator needs the battery in the circuit to keep power flowing in the right direction.

Jan 31, 2014 | 1999 Buick LeSabre

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Voltage regulator

Sounds like a bad connection. The alternator only charges the battery, so if it or the voltage regulator in the alternator fails, the battery would slowly run down, not die all at once.

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2001 Buick LeSabre battery goes dead after 3 to 5 days of no use. Bought new, has done this since purchase. Dealer claims all background power uses are within specs. Garaged when not in use. Can a...

Have alternator checked car may be running on battery power only. Check alternator belts as well. At night, look at lit dashboard while car is in idle, if dashboard lights are pulsating a bit the alternator may need to be replaced.

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1993 buick lesabre shut off while driving,battery was dead then bought a new battery drove well for 3 weeks then shut off while driving again had to jumpstart it.

Your alternator is bad. It's not recharging the battery as you are driving. The car is using battery voltage until it is all used up and then the engine dies. Replace the alternator and recharge the battery.

Jan 04, 2011 | 1993 Buick LeSabre

1 Answer

My 1998 buick lesabre wont crank and it makes a clicking noise when I try to start it

if it clicks more than likely a jump start will get it going and unless the headlights or other power is left on you might need a battery or alternator also the car is new enogh it will need a direct 12 volt power source for the pcm so if you un-hook the jumper cables and it dies it definetly needs a battery hope this helps

Jun 10, 2010 | 1998 Buick LeSabre

3 Answers

New battery but car dies

See if you can find someone with a multimeter and hook it up to battery, to see what voltage it reads before you try to start it, then write it down.Now boost it or whatever you have to do to get it running, and check voltage & record it with engine running. Voltage should be higher when engine running, approx 13.5 or 14 volts as compared to 12-12.5 when not running. If no increase, you have an alternator problem most likely. Let me know what you find.

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New battery dies, starter was replaced

The alternator charging system must be serviced. It could be the alternator itself, and maybe a burned out fuse link (a special section of wire buried within the wiring bundle to help prevent a fire if a short circuit occurs within the alternator). Take the car to an auto parts store--they usually will test it for free in hopes that you will buy a replacement from them.

Aug 05, 2009 | 1994 Buick LeSabre

1 Answer

1994 buick lasabre died while driving! Wont start

it does sound like you are having a problem with an alternator.

May 07, 2009 | 1994 Buick LeSabre

2 Answers

Loosen the serpintine belt on 95 buick lesabre

I'm sure you got it figured out by now, but I just did this today. the belt can be given slack by placing a ratchet on the belt tension pulley (the smaller one located to the left of the alternator) and applying counterclockwise pressure. This will give you enough slack to remove the belt. It is helpful to draw a little diagram of the belt configuration, so when you put on the new one, you get all the directions right.

Nov 14, 2008 | 1995 Buick LeSabre

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