Q: Car is suffering a voltage failure

asked by on

My car is having some sort of voltage failure. My car is very easy to start with a jump or portable battery, and then I will have no problems for about 24 hours. I took the battery to be tested and it is showing as okay, though they said there might be some type of minor voltage problem.

The battery cables and connections to the engine need to be inspected. Corrosion can occur in all of these connections. Also, the alternator needs to be tested to ensure it is charging the battery. A power drain could also cause this problem. Look for lights staying on in the vehicle as well. If you need help verifying the problem, a certified mechanic, such as one from YourMechanic, can come to your home or office to inspect your charging system and determine what repairs will be needed.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car is suffering a voltage failure

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: ABS, VSC, steering wheel lights on

Hello. I see that there are several issues that you are having here. There are also several things that may need to be repaired to solve the problem. All of the things that you have listed here may indicate that...

Q: Audio fuse keeps blowing after multiple attempts to change it.

Hello, thank you for writing in. When you jump-started the vehicle, you may have done damage to the radio. The radio itself may be continuously blowing the fuse as it is trying to turn on. You may want to try...

Q: Interior lights are on, but car won't start

It sounds like you may have a bad starter. Some times starters will go bad intermittently. This is often due to a loose connection of some sort that causes the voltage to be lost in the path from the battery...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...