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The engine will not turn over is a common engine performance problem. The root cause may range from a loose wire to a more serious mechanical issue. Fortunately, most of the problems that may prevent your engine from turning are possible to diagnose at home.
When you turn the key or push the start button, and don’t hear the starter engage. This is considered a will not turn over condition and the vehicle will fail to start. Often this issue is a result of one or more components that assist the engine in powering up.
The starter, battery, and alternator are the first components that are utilized in getting your car started. If your car, truck, or SUV isn’t starting and doesn’t make a sound; be sure to explain the symptoms your vehicle is exhibiting to your mechanic. This helpful bit of information will provide insight on which of these components is responsible for the engine will not turning over.
An electric motor mounted to the side of the engine that engages or disengages the flywheel of the engine.
Provides a quick and powerful jolt of energy to the starter. The battery is designed to partially drain a number of amps or volts to do its job, but the alternator is what’s responsible for keeping the battery charged.
Generates all the electricity needed for all other electrical components including the ignition, computer, and more. Although the alternator is not directly responsible for the vehicle failing to start, it could be the cause of a faulty battery.
Bad Ignition Switch
If your battery checks out, but the starter is still silent, it might be a faulty ignition switch.
Turn the key to the “On” position, not all the way to start, and check the following:
- If the red warning lights on your dash don’t light up and your battery connections are clean, the ignition switch is bad.
- If the red warning lights do light up, turn the key to the start position.
In most cars, the dash warning lights should turn off at this key position. If you’re not sure, turn on the headlights. When you try to start the car, the lights should either dim considerably or turn off completely. If they do, your ignition switch should be good. If not, the switch will need to be replaced.
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