Question about 2003 Buick Century

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Most likely reason for battery drain,2 to 3 days 2003 Buick Century

The Battery completely drains in 2 to 3 days from shutting down. The battery is an Interstate Battery.

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Charge the battery and then unhook the neg cable place a test light between the battery and the cable if the light is on there is a draw remove the fuses until the light goes dime then look into what the fuse feeds also unplug and remove the wires from the alternator that has diodes in it the can draw down the battery also if you have a power ant that doesn't work right that will also draw down a battery

Posted on Aug 21, 2012

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
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Posted on Jan 02, 2017

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Anonymous

  • 24 Answers

SOURCE: Where is the radiator drain plug on 2003 Buick Century?

just pull out the holes.

Posted on Jan 17, 2009

Anonymous

  • 9 Answers

SOURCE: drain the radiator

there should be a drain-**** valve that looks like a wing-nut either on the sides or th bottom

Posted on Apr 27, 2009

callonafo

Afolabi Bello

  • 174 Answers

SOURCE: where is the radiator drain plug on a 2003 Buick

I cannot speak for all models, but my 1989 Buick Century has a drainage valve located near the bottom of the radiator on the driver side of the car, and can sometimes require pliers to open. It's usually easiest to look for it from under the car....Thanks

Posted on Oct 13, 2009

Anonymous

  • 2 Answers

SOURCE: Hi, I have a 96 buick century,if i dont use it battery goes dead

The radio in my 1996 Buick century had a clock light that did not go off when the car was shut off, so the battery would go dead after 2 days. Disconnected the radio and all was well. Getting ready for a new radio now.

Posted on Nov 03, 2009

Salvador Quintanilla

  • 1608 Answers

SOURCE: Blower motor will not shut off. 2005 Buick LaCrosse

There is a bulletin for this fix.The bulletin number is 05-01-39-001A.This pertains to the blower motor staying on after key is shut off.What you will have to do is replace the blower motor resistor module and install a capacitor in the wiring.Part number is 25073556 for the capacitor.The blower motor is on the right side under the dash.Just remove the insulator panel and you should be able to see it if you look up into the dash.Or turn it on and listen for the blower motor.Disconnect the connector to the blower motor control module.Find cavity a and c.Cavity a is negative and cavity c is positive.C is red and A is black.Splice the positive lead of the capacitor to the red wire and the negative to the black wire.You should use splice sleeves and solder the wire on.Hope this helps.Good luck.

Posted on Dec 19, 2009

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1 Answer

What can cause a 2008 Buick Lucerne's battery to drain so much?


If you can't see any obvious reason, like lights on, radio, etc. you have some short circuit in electric system. Get PCM (car's computer) scanned to get a diagnosis and pinpoint location of the problem.

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1 Answer

What can brain my battery in a 2003 Buick centery


Check for any lites left on, under the hood, interior, everywhere. The best time to check is in the dark.

If access amp drain, pull/replace fuses, one at a time. When you pull the fuse on the faulty circuit the access drain goes away.

Sometimes the battery can drain back through a faulty alternator.

Mar 10, 2015 | 2003 Buick Century

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'93 buick century battery drain


unhook hot wire to alt at night if batt is up the next morning it is the alt

Jan 03, 2013 | 1993 Buick Century

1 Answer

2003 buick century won't start -replaced battery, no clicking noise


Check for power on the large wire at the starter. There should be power all the time. Check for power on the small wi at the starter. There should be power with the key in the crank position. If both of the above are true than the starter is likely bad.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Jul 23, 2012 | 2003 Buick Century

2 Answers

The car won't start after being turned off for a while. We replaced the battery already and now the new battery went dead. Something is draining the battery down to nothing, but we can't figure out what.


most wiring problems occur at rear of vehicle check for a wire rubbed thru bare on suspension drivers side frame also check wiring around starter and also taillight wiring at back end....if itwent dead siitting there then power drain is on right track it is fine once running alt chargeing proper?

Mar 19, 2011 | 1997 Buick Century

1 Answer

Airial wont go down when car is shut off and it keeps draining the battery


You can go in the trunk,and unplug the harness going to the antenna mass,it will stop the draining of the battery

Jun 06, 2010 | 1993 Buick Century

3 Answers

Hi, I have a 96 buick century,if i dont use it battery goes dead


The radio in my 1996 Buick century had a clock light that did not go off when the car was shut off, so the battery would go dead after 2 days. Disconnected the radio and all was well. Getting ready for a new radio now.

Nov 03, 2009 | 1996 Buick Century

1 Answer

Buick century 2003, slow drain overnight, wont start in morning


To know for sure you need to do parasitic draw testing ! Not looking for a magical fix on here . has anyone ran into any issues that may cause drain, like glove box light switch etc,???? In my thrity years of repairing vehicles have seen a lot of thing's cause this problem .Back in the 80's when i first started at chevy dealer saw glove boxes stuff full ,to the point light would stay on . These day's more like a module not powering down when it's suppose to. Hooking up a amp meter between the neg. battery post and neg. cable an checking amp draw. If it's over 80 miliamps you have a draw on the electrical system. Pulling fuse's till the draw goes away . find what all that fues powers and isolate the different circuits till the draw goes away . That's kind of the long way now a days . There is a much easier way ,voltage drop testing accross the fuse's .
The BEST Way TO Perform Parasitic Draw Test

How To Perform Parasitic Draw Test EricTheCarGuy

Jul 31, 2017 | 2002 Buick Century

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