Q: Bad alternator keeping car from starting

asked by on

My car won't start. I am thinking it is the alternator because I paid someone to jumpstart my car and check the battery. When I turned the car off, the car wouldn't start again.

Generally, when the alternator is not charging, the Battery Light will come on in the instrument cluster. The battery could also be the issue, a battery load test would be able to determine if the battery is good. The charging system should be load tested as well to ensure the alternator is responding and keeping the charging system voltage up to specification under load. You may want to enlist the help of a mechanic, such as one from YourMechanic, to test the charging system and replace the alternator if it is found to be the problem.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Bad alternator keeping car from starting

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Have a Mitsubishi Lancer 30th anniversary 2011, making a rattling noise when accelerating and loss of power. There is occasional smoke.

Hi there. The rattling noise is the ignition system being too retard or advanced as the engine is accelerated. Check the camshaft position sensor and see if the sensor is connected and sending a voltage reference to the computer. To...

Q: Popping noise when turnning the wheel, and want reverse straight, or stop reversing

This is a common sign of a failing CV joint. A CV (Constant Velocity) joint is a shaft that connects the transmission to the wheels, essentially transferring the power from the drive train directly to the wheels. The CV joint...

Q: Put key in ignition, but nothing happens

The battery would of been drained after sitting for a year. The battery may have been drained to the point it may not be able to be charged and would need a replacement. Also the fuel in the car may...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...