Question about 1997 Buick LeSabre

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1997 la sabre will not start

Car battery has been checked, replaced starter all lights and switches work...but when the ignition switch is turned on position it will not start, it makes no sound just nothing...does anyone know what problem may be?

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Connect a voltmeter to the battery while trying to crank the engine. Is there a drop in voltage or does it stay at ~12v? If the battery voltage dropped two or more volts while trying to start there is either not enough current to the starter from the battery or the starter might be bad. Not uncommon to get a bad starter out of the box. But if there is no change in voltage level nothing is loading the battery which suggests there is no power to the starter solenoid. Now you are going to need to get to the starter solenoid and see if you have power on the ignition wire while again trying to crank the engine. If there is no power the easiest thing to check is the ignition fuse. If the ignition fuse is okay then you have an open circuit somewhere. Does your ignition key have a resistor built into the shank of the key or is it just a standard key? If yes, sometimes the anti-theft wire harness running through the columb can fatigue over time and break. When this happens your anti-theft system will not close the ignition circuit to provide power to the starter solenoid courtesy of the body control module (BCM). On the other hand if you don't have anti-theft you might just have a bad ignition switch on the steering column.

Posted on Jan 18, 2009

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Hi, I'd be willing to bet that the starter is bad or the battery is. If you can swap a battery from another car to test your car out. if the good battery does the same thing then you know the starter is bad. Good luck.

Posted on Oct 02, 2011

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Sounds like a wire is disconnected at the starter motor.

Posted on Jan 16, 2009

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Why wont my 2004 buick la sabre crank when i turn the key ? lights do not dim they all come on but the car wont start??i have changed the battery

Any light's lit on the insturment cluster ? SECURITY or a car an padlock symbol ?
Circuit Description
Moving the ignition switch to the START position sends a 12 volt signal to the powertrain control module (PCM) Ignition Crank Sense. The PCM verifies that the transmission is in the PARK or NEUTRAL position. The PCM then grounds the control circuit of the START relay. When the START relay is energized it allows battery positive voltage to the starter solenoid S terminal.
Have you tried to move the gear selector to neutral ? Park neutral safety switch .
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11.please check the terminals from the battery,wires and all in good order.then check the volt comin to the starter motor if the volts are correct then the problem is with the started motor. please service or replace with the new motor.

2.if no supply is comin to the motor terminla then ther is a problem with the wires.the wire is damaged so no power goes to the motor.

3.if the voltmeter/multimeter reads less reading then the problem is with the battery.the charge is not sufficient enough to start the motor. please recharge or replace the battery if required.

if my information was usefull please vote

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