Alternator voltage problems..

[MAXX RS4]

While my car is running the voltage reads 13.6V at the battery. I believe it's supposed to be between 14-15volts, correct? Is this a sign that the alternator is going out or could it possibly be the voltage regulator? Thanks.

 

[03ghoststang]

While my car is running the voltage reads 13.6V at the battery. I believe it's supposed to be between 14-15volts, correct? Is this a sign that the alternator is going out or could it possibly be the voltage regulator? Thanks.

that seems about right it should be between 13.5 to 14.5 so your good

 

[MAXX RS4]

that seems about right it should be between 13.5 to 14.5 so your good

OK.. Thanks.

 

[n0v8or]

The battery charge voltage intentionally designed to compensate for temperature (you will measure a higher voltage when the alternator is cold). See page 4 of this document for a temp-voltage curve. Remember, this is the internal alternator temperature, not the outside temperature (they will be the same if the engine has been off overnight).

http://www.onsemi.com/pub/Collateral/CS3361-D.PDF

 

[MAXX RS4]

The battery charge voltage intentionally designed to compensate for temperature (you will measure a higher voltage when the alternator is cold). See page 4 of this document for a temp-voltage curve. Remember, this is the internal alternator temperature, not the outside temperature (they will be the same if the engine has been off overnight).

http://www.onsemi.com/pub/Collateral/CS3361-D.PDF

I have a temperature gun, but what exactly should I aim it at?

 

[n0v8or]

Well, if you want to be that precise, the end of the alternator where the electrical connector is located. Keep in mind that the accuracy of the curve is probably something like +/-0.5V. So if the curve indicates 13.7V and you measure anything between 13.2V - 14.2V, I wouldn't worry about it.

 

[jredwood301]

VOLTAGE QUES

U MAY BE GETTING LINE DROP AKA VOLTAGE DROP. CHECK CONNECTS TO SEE IF THEY ARE CLEAN. BECAUSE BAD CONNECTS CAUSE GREATER RESISTANCES TTHEREFORE U GET LESS VOLTAGE.