I have a 99 bonneville that won't engage the starter. The lights and dash do come on. The connections at the battery and the starter are good. The lights do not dim or go out when you try to start it. the security light is not on. Any suggestions?
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This may be related to the antitheft security system. The system is known for turning off the starter and/or injectors when it fails. When it's the security locked out starter, you won't even hear a click when you turn the key. Is there a light on the dash that says SECURITY or a picture of a car with a lock through it? This is a common problem worth looking into. http://www.diy-gm-security.com/
you have a shorted battery (have it tested) or there is a loose connection. A starter motor pulls a large amount of current when it engages, a loose conection or shorted battery will all the voltage away from the dash,lights etc.
Hi Vernon, There could be a number of different reasons why your vehicle is failing to start. The battery voltage could be dropping during start and become unable to engage the starter motor to turn the engine. You can check this by trying the key with the head lights switched on. If the lights become very dim, you'll need to check the battery, meaning clean the terminals and then try to start with a jump from another battery. If you achieve start up and it fails again the following morning, you will probably need to replace the battery. There could be a problem with the starter relay or a loose contact for the starter motor, most lik3ely the one connecting to the soliniod. It would be good to know some additional information, such as does a clicking sound come from the starter when engaged? Is there a perceptible drop in voltage output when the starter is engaged? does the enine turn at all? Try what I've suggested and if that does not solve the problem answer the questions and let me know anything else which you may think is relevant. Regards John
If you have power it would not be an alternator problem unless its not charging the battery and the battery is dead or too weak to turn the starter.
You may have a VATS (Vehicle Anti Theft System) Pass KeyII at fault. Is there a Security light on in the dash?
You may want to start by testing the small wire (S Terminal) at the starter. Hook a test light to it and turn the key to start. If the light comes on then its a bad starter/solenoid. No light then its the ignition switch, any anti theft device (if you have an alarm that disables or is in any way connected to the starting system i.e. remote start, that could very well be the problem) or wiring.
It sounds like a bad connection somewhere, check the battery cable connections for corrosion and tightness, both ends. It could be the starter, starter solenoid, starter relay, neutral safety switch or ignition. Try moving the shift lever to the "N" position and see if that helps. When you say you have a dead key, do you mean you have no dash lights, (oil pressure light, battery light, things of that nature) no clicking, no nothing?