What causes a car battery to start intermittently?
Reconnect the ground cable and re-check the voltage. It will either be completely normal or on occasion the electrical load from the cars computers etc. will cause the voltage to take a significant drop. Then hit the starter while measuring the battery voltage at the terminals.
Can a bad ignition switch cause a car not to start?
However, if your car has ignition switch problems, you may not be able to start the car at all. Ignition switch problems can also cause issues on the road, such as unexpected shutdowns or electrical problems.
Is the starter relay part of the ignition system?
One of the most important – and most forgotten – components of any vehicle’s ignition system is the starter relay. This electrical part is designed to redirect power from the battery to the starter solenoid, which then activates the starter to spin over the engine.
How can you tell if your starter relay is bad?
The most obvious warning sign that a problem with the starter relay exists is when the vehicle won’t start when you engage the ignition process. As stated above, electronic keys do not have a manual ignition switch. However, when powered, it should send a signal to the starter relay once the key is turned or the starter button is pressed.
Why does my Car start intermittently after starting?
A faulty alternator is typically intermittent, which would explain the intermittent issue you’ve described. Barring that, and assuming the battery and starter are indeed fine, I would next check the spark plugs and finally fuel injectors.
How to start a car with a bad ignition switch?
Jumper cables Open the hood of your car and locate the ignition coil and the battery. Then using a jumper cable, connect the positive terminal of the battery to the positive side of the coil. This will give power to the dashboard which is needed to start the engine.
Why does my battery have intermittent starting difficulty?
If the battery has an intermittent inter-cell connector problem, the voltage will drop to very close to zero yet if the key is released the voltage will mysteriously go to nearly a full charge condition or whatever it was when the ground cable was reattached as mentioned earlier. I hope this is helpful.
Why does my Car start every time I hit the start key?
That’s when that small resistance that is internal to the battery becomes significant and the “voltage drop” becomes too great to allow the battery to deliver sufficient starter current. You may hit the start key several times and magically the car starts and all is normal for an indeterminate time.