![]() It could be that the battery is OK, but is not being charged sufficiently by the alternator. However, there are a few other things it could be. It is possible to test it when installed on the car, but it is definitely not recommended because when you test, it will turn the engine which is a security issue when you have your arms in the engine bay at the same time.As CharlieRB pointed out, just because the lights come on doesn't mean the battery is ok. Unfortunately – to test it properly, you need to remove it from the vehicle. You can also test a starter to make sure it is functioning before installing it again or to make sure it is faulty before you replace it. RELATED: How to Start a Car with a Bad Starter (7 Steps) Testing the Starter You will most often find it bolted to the engine block, but it can in some cases also be installed on the gearbox pointing towards the engine. It can be difficult to reach through because it needs to be located on the engine’s rear. The starter motor is located on the back of the engine block near the flywheel between the engine and the transmission. RELATED: Does Auto-Start/Stop Wear Out Engine Components? Starter Motor Location Let a friend or family member check around the starter when you crank the engine to determine if it’s coming from there. Smoke can also come from a lot of different parts of your engine, but if the smoke is only coming when you crank the engine from a location near the starter – there is a huge risk that the smoke is coming from the starter. If it has gone bad, it can actually also start to smoke out of it. ![]() ![]() Smoke Rising from The StarterĪ failing starter motor can not only cause a bad smell from it. It can also be caused by a bad connection in the power wires going to the starter, so check carefully where the smell is coming from. If you feel a burnt smell at the same time as you are trying to crank the engine, there is a big risk that something inside of the starter motor is faulty. The same thing applies to the starter motor. Bad Smell When CrankingĪ starter motor is an electric motor that has a solenoid working as a “clutch.” If you have any previous experience with electric motors, you may know that they can start to smell bad if they are about to fail. We can determine, though, that if there is a strange noise from the starter when you turn the ignition, but nothing happens with the engine, there is a problem inside of it. To determine what part inside of the starter has gone bad, you need to disassembly the starter motor for a closer look. This can be due to broken internal parts such as broken axles or bearings. Grinding or Clattering Soundįrom the same principle as a whirring noise, you may also experience grinding or clattering noise from the starter motor when you turn the ignition if it fails. MORE INFORMATION: 5 Causes of a Car Engine That Cranks But Won’t Start 3. If the starter solenoid fails to engage the gear or a problem with the flywheel gear – you may experience a whirring noise. When the starter solenoid is receiving the signal, it engages a gear that is pushed out to engage to the flywheel to spin the engine. When you turn the ignition, it should send power to the starter motor and at the same time send a signal to the starter solenoid to engage. If you turn the ignition and hear a whirring noise, but nothing seems to happen with the engine itself, it may be caused by a faulty starter solenoid or a faulty pinion gear. If there is absolutely no activity in the engine after your ignition attempt, this probably means that the starter solenoid or starter motor has gone wrong.īad wirings or a dead battery could also cause this, so it should be diagnosed properly before replacing parts. Ideally, the starter should immediately turn the engine when you turn the ignition key. Here is a more detailed list of the signs of a bad or failing starter motor to look for: 1. These are the few ways that you can use to determine if your starter is bad or not. You may also notice a burnt smell or see smoke from the engine compartment. The most common symptoms of a bad starter motor are no activity at all or a whirring noise when you turn the key trying to start the engine. What causes a starter to fail? Symptoms Of A Bad Starter Motor
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