Question about 2002 Buick Century

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

Buick century 2003, after sitting for 18 or less hours, vehicle wont start, load tested batt and alt, charging system fine, obviously slow drain overnight enough power drained to not fire up engine, enough so lights on the dash light but not enough crank to fire. with that being said has anyone ran into any issues that may cause drain, like glove box light switch etc, any help would be greatly appreciated

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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

Posted on Jul 31, 2017

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Posted on Jan 02, 2017

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

just pull out the holes.

Posted on Jan 17, 2009

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SOURCE: 1996 Buick Century - All Lights do not turn on

follow all power source to the fuse panel over time road vibration
or even rust can this problem check to see if you have additional
fuses under your hush panel replace o one more thing checto see if your ignition module has good connection its by your cars fire wall.

Posted on Apr 06, 2009

rteemon
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SOURCE: 1995 buick riviera super charged 3.8 charging problem

YOU ARE WRONG '' YOUR AIR BAG SENSOR OR MODULE IS WHERE YOU SHOULD LOOK AT

Posted on Sep 16, 2009

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SOURCE: 1990 buick century All power windows will not move

Well I was wrong, the window on pass side worked from the switch on the pass door !! So now that I know this I took apart the driver side door switch controll panel ( ie. 4 windows switch up/down & 4 door lock / unlock switch) I found 12 volts to the door lock section but NO 12 volts to the window section ( with key on) !! ratheer then trying to trace out this wire (oange) I took 12 volts from the door & jumpered it to the window 12 volt supply { now I know the door wire is thicker ( more amps) then the window supply but I dont't think I'll be useing all 4 window moters at once...} oh well what the hell it's almost 20 years old has three sets of seats & gets close to 28 MPG....
****,,,,

Posted on Oct 26, 2009

  • 1 Answer

SOURCE: Service Vehicle, Trac Off, & ABS lights 2001 Buick Century.

I just put in new fron pads in my 2000 buick century and the track off and the anti lock brake light and the service engine soon stays on

Posted on Jun 30, 2010

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later
paul

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