Q: Car won't charge after replacing battery and alternator

asked by on

My car won't charge even though I've replaced all grounds, alternator, and battery.

From the looks of it, you have done a lot of work on your Mustang. I can understand how frustrating it must be to get this far but still be experiencing problems with charging. The first question I would ask is if this previous work was performed all at once or gradually over some time, such as weeks or months. Many people will say that a part on their car is brand new, only to discover that the battery is a year old. It’s possible that the battery or alternator may have failed again but on different times.

Now, let us say there is a definite new battery and alternator in the Mustang and all known grounds are good. Yet for some reason your Mustang is still not charging. From there, we can move toward the inspection that there is likely to be a wiring issue between the alternator and battery. With new parts, this is probably really frustrating for you. I believe it is best to enlist the help of a certified mechanic to ensure a proper diagnosis and repair of your battery and alternator.

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

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!
  1. Home
  2. Questions
  3. Car won't charge after replacing battery and alternator

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: Q: transmission

It sounds like you are having a problem with your transmission's shifting mechanisms. Have the shift linkage checked to see if the cable bushings are worn out. A mechanic, like one from YourMechanic, can give your car's transmission an inspection...

Q: alarm won't cut off, even when I unhook the battery an re hook it it will come back on

Depending on the alarm system you have, it will vary the type of repair that will be needed to diagnose or fix the problem. If you have the factory alarm system, then you will have to have the system diagnosed...

Q: Engine light and battery light is on.

Hi there. Check the alternator and see if its not charging properly. Charge up the battery and start the engine. Check for a voltage on the battery with the engine running and see if its between 13.5 and 14.7 volts....

Related articles

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.