Skip the auto shop - Our mechanics make house calls

Q: Battery Light

asked by on

I just purchased a 2002 Volvo S40 with 145k miles, one owner, pretty clean. I was wondering what to expect from this model/year of Volvos? Also, when revved high (4,5,6000 RPM), the battery light flickers and the lights and gauges dim.

Thanks

My car has 145000 miles.
My car has an automatic transmission.

Hi there:

In most cases when the battery light comes on, it’s an indicator that the alternator is faulty or starting to show signs of wearing out. If this occurs only when the RPM is revved high, it might be a sign of a faulty alternator belt pulley (which powers this system once the vehicle has been started). Volvo’s can be very tricky to maintain over 150,000 miles, so you might want to have a professional mobile mechanic complete a battery light is on inspection; so they can diagnose why the light is coming on and recommend the right repairs.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Van overheats

Hello. Yes there are two key things that I recommend you or your technician check. Check the hoses, radiator, and engine block for clogging. A clog in those components will restrict the coolant system from being able to circulate. Also,...

Q: Engine racing too high

The coolant reservoir will need to be checked to see if it is leaking or if the engine has an overheating problem. The high idle may be due to a vacuum leak at a hose or a faulty throttle body...

Q: I hear a click sound when making a sharp left turn I just put new cv axles on both sides?

If they just put 2 new axles in, I would certainly take it back and ask them about it. What you're describing sounds like a CV type noise There are a great many companies remanufacturing axles for the service market,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...