Q: Car clicks but won't start unless jumped - just replaced battery two days ago.

asked by on

Car wasn't starting after sitting overnight unless I jumped it so I took the battery in to be tested and it tested bad. Replaced the battery and the +connection, car started fine for a couple days. This morning it would not start on its own, just clicking again. Tried jumping it and it started up fine.

My car has 223000 miles.
My car has an automatic transmission.

it sounds like you may have a problem with the charging system not properly maintaining a charge on the battery. The clicking sound (usually very rapid) is a result of the battery not generating enough power to cause the starter motor to turn the engine over. As you may know, the alternator charges the battery while the engine runs by generating amperage and recharging the battery while the engine turns the alternator pulley. The voltage regulator is a unit that regulates the charging of the battery by the alternator and maintaining a certain amperage while the engine runs. When the alternator is not working properly, this may result in the battery quickly losing charge and the car losing all power. You may also notice a whining sound as a result of the bearings inside the alternator begin to fail. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your charging system.

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 clicks but won't start unless jumped - just replaced battery two days ago.

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: 1997 Nissan Pathfinder won't pass smog check

If the vehicle has a Check Engine light, this may be able to help diagnose the issue because it would produce a trouble code for the emissions system. If the vehicle does not have the Check Engine light illuminated, I...

Q: Throttle light came on

Hello, if the throttle light just came on briefly and then went off, that would be normal operation. When the throttle light comes on briefly and goes off, it's letting you know that it is reducing power because it has...

Q: Clicking noise while turning. Possibly the CV joints?

Yes, a clicking noise on turns is a classic symptom of a failed outer CV joint. If there are visible loose parts, this will be easier to diagnose. CV axle replacement is a very straightforward and is a common repair....

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...