How to check the alternator on a Subaru Outback?
How to Troubleshoot a Subaru Outback Alternator
- Turn your DVOM on and set it to read volts D/C.
- Read the voltage displayed on the meter.
- Remove the positive DVOM lead from the battery and touch it to the charging post on the back of the alternator.
Why is my new alternator not charging my battery?
The most obvious reason why your battery won’t charge when your alternator is brand-new is that the problem is with the battery itself. If you’re not 100% sure, you can use a multimeter, or a voltmeter, to check the current coming from your battery.
How long do Subaru alternators last?
The battery’s job is to start the car, and the alternator keeps it running.” Gunning says an alternator typically lasts about seven years — or about 100,000 to 150,000 miles, says Waits. Some mechanics, though, say they typically see alternators last about 80,000 miles.
How can you tell if alternator is bad?
7 Signs of a Failing Alternator
- Dim or Overly Bright Lights.
- Dead Battery.
- Slow or Malfunctioning Accessories.
- Trouble Starting or Frequent Stalling.
- Growling or Whining Noises.
- Smell of Burning Rubber or Wires.
- Battery Warning Light on Dash.
Can bad battery cause alternator not to charge?
Damaged car battery The alternator and the car’s battery work hand in hand. In theory a car can run only with the alternator charge, but this can cause heavy voltage spikes and other strange symptoms so this means that a bad car battery can cause an alternator to not charge also.
Can a bad ground cause an alternator not to charge?
Poor ground connections are an often-overlooked cause of low charging output and alternator failure. Check for voltage drops at the positive and negative battery cable connections, the alternator BAT+ power connection and the engine ground strap(s). Voltage drops on the negative side can cause overcharging.