The easiest method to check the 12v battery in Cobalt is by measuring the voltage with a multimeter. Symptom: Rapid clicking sound This is what rapid clicking noise normally sounds like due to a weak battery, or due to a poor battery connection (for example due to corrosion on battery terminals). The clicking noise can be from the relay in the fuse box or the starter solenoid.
If there isn’t enough charge in the battery to power the starter motor, and you try to crank the engine, the battery voltage will get so low that it can’t properly power the lights, accessories and of-course the starter. Flickering dashboard lights, rapid clicking noiseĪnother symptom of weak battery in Cobalt is flickering dashboard lights and/or rapid clicking noise when you try to start the engine.
The starter motor requires high electric current to turn over the engine, whereas lights and wipers take very little current to operate – so don’t rule out weak battery even if electrical accessories work normally in your Cobalt. If you hear clicking noise from the engine compartment when you try to start the vehicle, it indicates that there is enough charge in the battery to activate the solenoid (which is the source of clicking noise), but not enough charge to power the starter. The leading cause of clicking noise and no start in Chevy Cobalt is weak battery.
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