Q: Charging system warning light.

asked by on February 07, 2017

when at idle the head lights and dash lights are very dim and battery light is on when u rev the car up the lights get way brighter and battery light goes off what could this be?

My car has 223000 miles.
My car has an automatic transmission.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

My 1988 Volkswagen Cabriolet stalls when engine is warmed up
Hello. There may be a problem with the filler neck tube (https://www.yourmechanic.com/services/fuel-filler-neck-replacement) or the gas tank itself. If the filler neck or gas tank has started to wear out or deteriorate it may cause excessive fuel tank pressure. The fuel...
what does it mean when your car starts knocking in the front near the tires?
Hi there. The best way to diagnose any problems with the front end is to have a professional mechanic take a test drive. However, the symptoms you are describing are similar in many ways to worn out brake pads (https://www.yourmechanic.com/article/symptoms-of-bad-or-failing-brake-pads)....
Security system is activated and is not letting me turn the car on
Hello there, the security system is an important safety feature with your 2004 Nissan Xterra. You will not be able to disable the security system as it is integrated into the ignition system. Common causes for the security system to...
Traction control light is on, 2000 BMW
As you know, your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car's ECU....
When an engine is replaced should it include a new intake boot or air intake system? Or is that separate?
The intake hose and any external component of the engine is not included in an engine swap replacement unless it is listed to be replaced as a separate item to be replaced.
My car was making a loud squeaking sound,
The noise may have been due to a seized or seizing component, such as the water pump, that is driven by the engine's serpentine belt. The serpentine belt either broke, or the water pump seized causing the belt to break....
Car running below operating temp/ check engine light
Hi there. The code you've listed is commonly associated with a temperature control system failure - not necessarily a problem with the radiator thermostat. There are a few easy things you can do to begin the diagnostic process. Check the...
Engine
In your earlier question, you indicated possible lack of engine oil, hence in your case a likely cause of the knocking noise is engine bearing damage. Below is a complete explanation though of all possibilities for you to consider and...
2005 Chrysler 300 changed etc body, and map sensor, and etc voltage sign, and bas lights come back on and idles high
You will need to have the throttle relearn procedure performed using a factory level scanner or the codes will return. This is needed anytime the throttle has been changed.

Related articles

A Buyer’s Guide to the 2011 Mazda RX-8
The The 2011 Mazda RX-8 is a sporty, two-door coupe that is able to seat four people (two in the front and two in the rear). While this was the final year of production for the RX-8, it definitely made...
The Best Used Cars to Buy If You Just Got Your License
If If you are a new driver, congratulations on getting your license. Now, you need to think about what type of vehicle to buy. Ideally, you’ll choose a used car that isn’t overly expensive, and is reliable and safe while...
The Best Used Cars to Buy If You Don’t Have Kids
Buying Buying a used car is rarely a simple process, but if you don’t have kids, you have many more options than those who have to account for additional passengers. There are plenty of choices out there, depending on your...