New Battery - Alternator Required?

[glantv699]

So I believe my Optima Red Top is scheduled for delivery tomorrow. I'd like to install it as soon as possible but I have a question...

My alternator seems to be showing its age and is making more noise than usual during normal driving, more so when I come to a stop while still in drive. Perhaps it is just the belt, but my question is, would NOT REPLACING the alternator have a negative impact on my new battery?

[RedGalant2k1]

Not necessarily. If the alternator voltage at cranking, under load, and not under load is adequate (14 volts or better) than don't worry about it.

[glantv699]

http://www.mitsubishipartstore.com/catalog/?N=9176+4294967172+4294967203&Vi=11327 4294963739 1676&mk=Mitsubishi&md=Galant&y=1999&Nr=OR(AND(make:Mitsubishi,model:Galant,year:1999), AND(universal:1))

My new battery is dandy but I am convinced the alternator still needs replacing.

Dave, you mentioned 14 volts, is that a typo and can anyone confirm stock voltage and amperage for the alternator. This particular one is 12V 85A, while others I saw were 90A, they might have been for the 4G64 though.

[OMEGA PHX]

I'm just going to tell you that if you buy a new one buy it for the eclipse since they are 95A and galants I4's are supposed to be 85A, just a suggestion.

[Boosted]

The alternator will only need to be replaced if it is no longer holding charge.

[LatinoX20]

14v is right, once the car is running check the voltage on the battery itself if it says around 14v your alt. is good

[polishmafia]

The alternator will only need to be replaced if it is no longer holding charge.

Huh? The alternator holds a charge? What in the world are you talking about? *sigh*

[RAZ_76]

Huh? The alternator holds a charge? What in the world are you talking about? *sigh*

He's lost..lol

[Boosted]

You took what I meant in a different direction. The alternator gives off a charge.