Q: New battery and car still won't start.

asked by on

Car won't start. It has a new battery and I know it is not the alternator.

If there is a problem with the starting system, the car may not start due to a problem with the battery, alternator, and/or starter. It is possible that the car will not start even when the battery is new if the battery connections are loose or corroded. Corrosion can block electricity from reaching the starter motor, which is used to crank the engine. If the starter is defective, this may prevent the car from starting as well. There are also some other possible issues that would prevent the car from starting. The following are some other reasons why the car won’t start:

  • No fuel/low fuel
  • No oil/low oil
  • Defective fuel injector
  • Defective spark plugs
  • Defective fuel pump
  • Engine misfiring condition
  • Clogged fuel filter
  • Defective timing belt
  • Defective timing belt tensioner
  • Electrical issue
  • Defective Powertrain Control Module (PCM)

When a car won’t start, the first thought is always that there is an issue with the battery or alternator. However, there are several other components that could prevent the car from starting, if they are defective. If your car is not starting, contact a certified technician, such as one from YourMechanic who can help to diagnose your starting issue and make necessary repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. New battery and car still won't start.

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: What does "battery saver active" mean?

Hello. Your message indicates that the electrical system voltage has fallen to 11.7 volts. This is rather low for a modern car with the engine running - normal voltage should be about 13.0 volts. Perhaps your new alternator has a...

Q: My car has low battery voltage - 2015 Toyota RAV4

Hello. From that test, I can determine that the charging system, as in the alternator, is fine. The voltage of the battery itself is very low, however. The starting volts are dropping way below the minimum, which means that the...

Q: Start Error with vehicle.

These vehicles have ben known to have a defective ignition system immobilizer that can cause the issue. The replacement immobilizer will require programming with a factory scanner that can enable it. Have a certified mechanic, such as one from YourMechanic,...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...