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A tuner is an electronic device that modifies a truck’s engine to improve its performance. The device has a silicon integrated circuit in the center that responds to the driver’s inputs and changes the operating conditions of the engine to make it run faster, longer, or more efficiently. It also enhances the throttle response. A …

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When you have a problem starting your vehicle, the first place to look is the battery. If it’s not charging, check the voltage between the battery and the starter motor. If the voltage is below 10 volts, then your starter motor may be failing. Another possible cause is a bad connection between the battery and …

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