If your vehicle won’t start, it’s usually caused by a dying or dead battery, loose or corroded connection cables, a bad alternator or an issue with the starter. It can be hard to determine if you’re dealing with a battery or an alternator problem.
What do I do if my car wont start but the battery works?
Once you have your car jump-started, the alternator should recharge the battery as long as the car is running. If this problem happens frequently, you may be able to help the problem by cleaning out any corrosion that has gathered around the battery terminals.
How do you tell if its your alternator or your battery?
If your engine won’t turn over or takes far longer than usual, it’s time to grab the jumper cables and attempt a jump-start. If your engine starts and stays running but won’t start again later, it’s likely a battery problem. If your vehicle immediately stalls, it’s probably a bad alternator.
How do you check if your alternator is bad?
7 Signs of a Failing Alternator
- Dim or Overly Bright Lights. …
- Dead Battery. …
- Slow or Malfunctioning Accessories. …
- Trouble Starting or Frequent Stalling. …
- Growling or Whining Noises. …
- Smell of Burning Rubber or Wires. …
- Battery Warning Light on Dash.
Why won’t my car turn over but I have power?
If you turn the key and can hear the starter motor trying to turn the engine over, the lack of power is likely caused by electrical issues such as a weak battery, dirty battery terminals or a worn starter motor. … If you’re still not having any joy, it may be a problem with the battery terminals.
Why wont my car start but the radio and lights work?
If the lights and/or the radio come on but the car does not start, you may also have dirty or corroded battery terminals. The terminals are what connect the electrical system to the battery. … Attempting to jump start your car can also either confirm or eliminate the battery as the cause of your issue.
How much does it cost to fix the alternator?
When your car starts having electrical problems, it’s a sign you need an alternator replacement. Considering the price of a new alternator as well as labor, you should expect to spend anywhere between $500 and $1,000 to get a new one for your vehicle.
Will a bad alternator keep a car from starting?
When the alternator is failing, there might not be enough power in the spark plugs to keep the engine alive, which can cause it to stall for no reason while running, or to have trouble starting. Ignore this symptom, and your car eventually won’t start at all.
Will car start if alternator is bad?
Bad Alternator Sign #4: Difficulty Starting Your Car
The alternator could be bad if your car won’t start or it’s turning over several times before finally starting. Of course a weak or dying battery could be the problem, but if you’ve already eliminated this possibility it’s likely your alternator isn’t working.
How long does it take for a bad alternator to drain a battery?
Even though your battery still works with a bad alternator, it will not last for a while. At most, you will get 30 minutes of a drive if you have a bad alternator. So when this happens to you, it’s best for you to prepare for the best route for the destination you want.
How do you tell if it’s your starter or ignition switch?
Test the Starter
It is under the hood, usually on the passenger side at the bottom of the motor next to the transmission. The ignition switch is a set of electrical contacts that activates the starter and usually is located on the steering column.