Skip the auto shop - Our mechanics make house calls

Q: Batteries at 13v go dead after trying to start it

asked by on

The batteries are reading 13 volts hard start it sounds like they don't have enough voltage in them to start the truck then after I try and start it they read 8 volts

My car has 130000 miles.
My car has an automatic transmission.

A: You need to have the battery charged and lo...

You need to have the battery charged and load tested. A battery may hold 13 volts and as soon as a load is put on it drop below 9 volts when they are bad. If you want to have this done, a technician from YourMechanic can visit you at your car’s location to diagnose your starting issue and make the correct repair.

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: Will a wire harness clip fit right the hand mirror if I order the one with out the memory verses the stock one with memory?

Hi there. In order to make sure that you are ordering the correct mirror to the door that your are wanting to replace, simply remove the mirror that is on your vehicle and look at it. Then go down to...

Q: I locked my keys in my car and the car battery is dead

Hello there, thank you for asking about your 2009 Chevrolet Cobalt. You will need to have a locksmith or call AAA (if you have it) and explain the situation. The locksmith will unlock the car so you can get the...

Q: How do you use the navigation system’s hands-free controls?

If your car is equipped with a built-in navigation system, there are hands-free controls on your steering wheel that allow you to interact with the car’s nav system without having to take your eyes off the road. Here’s what to...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.