Skip the auto shop - Our mechanics make house calls

Q: May need new alternator

asked by on

My car won't start, and I think it might be the alternator.

You may have a bad alternator, but I get a lot of customers who think that the alternator is bad, when the problem is actually with the battery or its terminals. I recommend that you have a mechanic, like the ones from YourMechanic, come by and check the starting and charging systems to do a thorough diagnostic of your car’s starting problem.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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: Why won't the starter motor engage and turn engine over. Also, the clutch pedal won't move and the clutch is partly engaged but slips.

If the clutch pedal is not moving and the clutch is partially applied, then the clutch release bearing may be damaged and the fork is jammed into the clutch forcing it to slip. For the no start condition on...

Q: Headlights and dash lights flicker

It is possible that your voltage regulator is going bad. Normally, this is integrated into the alternator but some vehicles have it separate. If the voltage regulator has failed, the amount of power that all your vehicles accessories will receive...

Q: Do differential and gearbox use the same fluid on a 2000 Toyota Corolla?

No, they are telling you the truth. If it was a '92, then yes. They had differential oil on one place and other oil on another. But on yours, it's all the same fluid. They are telling you the truth...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.