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

asked by on November 01, 2016

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.

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

Why is my passenger airbag light always on?
Hello! Thank you for writing in with this question. Kia released Technical Service Bulletin/Recall Action (TSB SC-076A) that specifically covers this issue. The TSB outlines an update to the OCS Electronic Control Module that is located in the seat cushion....
How do I use the heated mirrors?
Not all vehicle vehicles will be equipped with heated outside rearview mirrors. If yours is, this can be a handy tool to provide extra visibility in the colder months. Your side and rearview mirrors will automatically heat when the rear...
How do I pair a phone to the HandsFreeLink system?
In order to use your phone through the audio system via HandsFreeLink, you first have to pair the phone. Here’s how to pair your phone to the system via Bluetooth, if no phones are currently paired: 1. Press the Phone...
Speedometer not working in a 2004 Chrysler PT Cruiser
There may be a wiring issue in the speedometer circuit, or the gauge in the instrument cluster may be bad. I would ask for help from one of the mechanics at YourMechanic to help diagnose and repair your speedometer concern...
There is noise when I go over bumpy road or uneven road.the noise only happen when the car left around 5-6 hours before driving
Your front struts may be worn out or have bad strut insulators that need to be replaced. The struts have a gas charge in them that, if too low, will not work correct until the strut is warmed up from...
We just putting in a brand new battery and alternator and last for the week battery now it won't hold a charge
Several issue may be causing the battery to not charge or not hold a charge (https://www.yourmechanic.com/services/battery-will-not-hold-a-charge-inspection). The first and easiest step is to trace the wiring circuit involved with the starting system, and visually inspect it for any physical damage....
Got gas in my oil
If you are getting fuel into the oil then you either have a leaking injector or fuel pressure regulator. I recommend having fuel pressure checked and check the pressure regulator vacuum line to see if fuel is getting in it...
I'm looking to buy an 01 cobra but the guy selling it says there is a lifter problem. How serious is this and should I buy?
The lifter is not too much of a problem, but it could be costly to replace if you are having a technician replace it. You can try changing the engine oil and filter and running a oil treatment in the...
I have a 1999 LR Range Rover HSE that had a water pump issue & i raplaced it but it was still over heating . why is this ?
Hi Omar. If the water pump was damaged, it's not always the only source of an overheating problem. There are generally two reasons why people will continually have an overheating issue after replacing a damaged part. First, it's quite common...

Related articles

A Buyer’s Guide to the 2012 Honda Civic Hybrid
With With more and more consumers looking for better fuel efficiency, hybrid cars are taking off in ways that most of us never thought possible. Today, America’s top-selling compact car, the Honda Civic, is offered in a hybrid model with...
2012 Mazda 3 vs. 2012 Honda Civic: Which One Should I Buy?
Compact cars are well-known for their cost-effectiveness, value and affordability as well as their small stature. In general, they make great commuter cars and are especially good for first-time cars for kids or college students heading out for the first...
The Best Used Cars to Buy for College Students
You’ve You’ve done it – high school is officially behind you. Now it’s time to head off to a brand new world. College is that and more and you may need a car during your pursuit of a higher education....