Skip the auto shop - Our mechanics make house calls

Q: What's wrong when the alternator is not charging the battery, both parts are new, car Will go dead after driving 20 mins

asked by on

Car have new starter, battery, and alternator, the car cut off after 20 mins,it's no power going from the alternator to the battery, what can that be

My car has 179000 miles.
My car has an automatic transmission.

Your vehicle has a fusible link in the wire harness that goes from the main wire on the alternator to the starter. If you had the starter replaced then maybe the wire was not put on the starter.

The fusible link acts like a fuse, but also looks like a wire in the harness. Check if this wire is connected to the starter and that it’s not burnt in two. Sometimes the fusible link wire will burn in two but the wire outside cover stays intact. You have to pull on the wire to tell if it is burnt. I’d recommend having a mechanic diagnose your vehicle in order to fix your batter/alternator issue accurately.

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
  • Home
  • Questions
  • What's wrong when the alternator is not charging the battery, both parts are new, car Will go dead after driving 20 mins

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: Hard to steer g6 gt 3.5 at low speeds

Hi There, This suggests your power steering pump may be failing or you have a leak elsewhere in one of the power steering lines. The power steering system operates on very high pressurized hydraulic pressure (in some cases as much...

Q: Noise under the hood

Hi there: Noises under the hood while idling can be caused by multiple components ranging from faulty pulley's to serpentine and drive belts that are wearing out. It could also be a loose bracket perhaps that is loose. The best...

Q: Catalytic converter lifespan on a '98 Firebird Can bad ignition switch crank the car

Yes, it can still be bad and crank the car. The ignition switch sends the power to all kinds of things and different parts of the switch. It could be sending power to the start-up but not to the ignition...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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...