Why is my brand new alternator overcharging?

Why is my brand new alternator overcharging?

Newer alternators have computer controlled regulating devices. The sensor dictates the amount of voltage an alternator puts out depending upon the temperature. Hot batteries demand less voltage, whereas cold batteries require more voltage. A defective sensor can send the wrong signal and cause an overcharge condition.

How much is a alternator for a 2001 Honda Civic?

This item New Alternator Replacement For Honda Civic 1.7L DX LX EX VP D17 2001 2002 2003 2004 2005, Acura EL 1.7L 01-05 31100-PLM-C01, 31100-PLM-C02, AFGA51, 31100PLMC01, 31100PLMC02 Remy 94125 New Alternator
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How long should an alternator last on a Honda Civic?

Alternator failure is fairly common, but an alternator can last well over 100,000 miles without incident. Harsh driving conditions and custom power accessories can shorten the life of an alternator.

What should the alternator voltage be on a Honda Civic?

If your Civic’s alternator is working (and thus charging), your multimeter will show a voltage of 13.5 to 14.5 Volts DC. Now, if the battery is completely dead on your Civic, you’ll need to charge it up enough so that the car can idle for about 5 to 10 minutes (while you perform the test).

What causes an alternator to over charge a battery?

Measure voltage across the battery with your DMM. You should get 0.5 to 2 volts higher than base voltage. If you are getting more than 2 volts above base voltage, most likely your alternator is over-charging the battery or the battery is faulty. Other potential problems are a faulty voltage regulator or a problem in the charging system wiring.

What are the symptoms of a bad Honda alternator?

Symptoms Of A Bad Alternator. TEST 1: Battery Voltage Test With Engine Running. TEST 2: Checking The Continuity Of The Bat (+) Cable. TEST 3: Checking The Alternator Fuse. Where To Buy A Brand New Alternator. More 1.6L Honda Civic Test Articles.

What does parasitic drain on Honda Civic mean?

A parasitic drain is tech-speak for something staying on (usually inside the car, for example: a dome-light) and draining the battery while the engine is off. CASE 2: Your multimeter registered a voltage that steadily dropped down to 9 Volts. This is a clear indication that your Honda Civic’s alternator IS NOT charging the battery.

What does an alternator do in a Honda Civic?

Your 1.7L Honda Civic’s alternator fulfills two basic requirements: One is to charge the battery so that you crank and start the car each and every time you need to. The other is to provide the electrical current for everything that requires it (think radio, blower motor, headlights, etc.), as you’re driving down the road.

Symptoms Of A Bad Alternator. TEST 1: Battery Voltage Test With Engine Running. TEST 2: Checking The Continuity Of The Bat (+) Cable. TEST 3: Checking The Alternator Fuse. Where To Buy A Brand New Alternator. More 1.6L Honda Civic Test Articles.

A parasitic drain is tech-speak for something staying on (usually inside the car, for example: a dome-light) and draining the battery while the engine is off. CASE 2: Your multimeter registered a voltage that steadily dropped down to 9 Volts. This is a clear indication that your Honda Civic’s alternator IS NOT charging the battery.

How to do a Honda Civic battery test?

Now, if the battery is completely dead on your Civic, you’ll need to charge it up enough so that the car can idle for about 5 to 10 minutes (while you perform the test). These are the test steps: Crank and start your Honda Civic and select Volts DC mode on your multimeter. Probe the positive battery terminal with the red multimeter test lead .