Skip the auto shop - Our mechanics make house calls

Q: Check Charging System and Battery Lights

asked by on

So, I had my car die on me,, had the alternator rebuilt and tested, did nothing, the battery was just replaced (as it was under warrenty).. my belt is ok (everyone says its good and the tension seems fine), as I hate winter, my parking lot is not the best place for working on it as there is a blizzard basically every two days, and every other day is like -30 celcius. Been a long process getting to this disappointing stage.. any advice?

My car has 125000 miles.
My car has an automatic transmission.

Hi There, You may have a bad voltage regulator that may be causing your charging system to not properly charge the battery. The voltage regulator is a unit that regulates the charging of the battery by the alternator and maintaining a certain amperage while the engine runs. When the alternator is not working properly, this may result in the battery quickly losing charge and the car losing all power. You may also notice a whining sound as a result of the bearings inside the alternator begin to fail. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your charging system.

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: How do you use the four-wheel drive system?

If your car is so equipped (optional), the four-wheel drive system offers intelligent operation and limits the input you need to provide to activate and operate it. If you’ve never driven a vehicle with an intelligent four-wheel drive system, here’s...

Q: Car is running sluggish and the engine light is on.

Hi there. Check the ECM (computer) for any active or pending codes that are contributing to the engine light being on. This will give you a location to start with for diagnosing your vehicle and why it is running sluggish....

Q: When on short local runs around town the car does not want to restart! I take a 10 min drive on highway and it starts normal

Hi there, thanks for writing in. You may be having a problem with the purge control valve leaking fumes into the engine when you shut off the car. The fumes will flood the engine and cause hard starts or no...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...