Skip the auto shop - Our mechanics make house calls

Q: All of the electrical components shut down slowly while driving

asked by on

I have not had my car for a year yet...i had to replace the alternator at 6/ mos. The mechanic told me at that time it would happen again because he said the computer wasnt telling the alternator to put out what its suppose to. Sure enuff the alternator went out again. I again replaced the alternator but took it to have it tested. The battery tested good so did the alternator but the load decter was shot. I replaced that today but the problem is not fixed. When im driving it at night with the lights on everything slowly shuts down....all the electrical. What could possibly be wrong now???
My car has an automatic transmission.

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: Reason for car continually stalling can't be found by dealerships

Hi. We will be happy to help you. I believe that you have a brake hardware component coming out of place at times and scraping against a moving surface. This is a common occurrence. Another common occurrence that could cause...

Q: 99 Niss.Max, brake,battery,check engine light on, car died while driving, replac. batt, started and drove and next day won't start

You may have a faulty charging system and/or intermittent electrical connections. At this point, be sure that you have a fully, 100% charged battery that passes a load test. Confirm that the engine immobilizer system (security system) is not activated...

Q: No lights on instrument panel

There is a 7.5 amp fuse under the hood for the instrument cluster lights. Check for power with the headlight switch on. There is a rheostat on the cluster itself. Turn it left or right to adjust the illumination. That...

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...
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...
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...