Altenator help needed...

[Greensilver_SHO]

Alright, my Altenator is probably about as old, if not, as old as the car. I have a 1993 MTX. And I just recently put in the system to die for (trust me, when I paid for it, I died) and I have a nearly brand new Optima Yellow Top battery. I have a P4004 Rockford Amp and I have 2 Subs running through, I also have my 6X9 Pioneer speakers in back and my 6.5 Infinity speakers up front w/ components.

I have a Rockford 1 Fared Cap. just not installed yet. One day I couldn't start my car at all, after I pulled the fuse to the amp, I haven't had problems. I don't think the Cap. is going to help, just because it's mainly for peak power. So I'm looking into a new altenator, just because I think mine may be getting weak.

So basically, whats the biggest bang for the buck. I want something good, I'm willing to pay for it... within reason. Any advice would be appreciated.

 

[SHOZ123]

As alternators age they will put out less current at low rpms. Most alternators are rated at ~1500 rpms. I would just get a regular replacement and make sure the battery is charged. Don't count on charging the battery with the alternator.

 

[NiNeTy Fo SHO]

I would get the alternator tested first at an auto parts store for free first. This just ensures you lack of DC current.

If it is low, then I would suggest just factory replacement with a warranty. If you have a cap, I would think the alternator could handle what your running without a problem.

Cold, plus old, and large draw of current from system = lots of strain. :wave:

 

[Greensilver_SHO]

Thanks... my friend is probably going to install the cap, sometime within the week. I talked to a few other people, and they said since I almost went a whole week with no problems, that a cap would probably just help out the most.

And my dad just told me that at one point, we had the alternator rebuilt. Good to know...

 

[SHOZ123]

Caps aren't anything but band-aids and make no power. If you didn't have enough power before then you still won't have enough. They are actually a drain on a marginally charging system.

 

[5.0 5speed]

tha cap does draw current but it makes it so it can store power so the amp doesnot use as much from the car when the bass hits hard

 

[Greensilver_SHO]

I was looking at Autozone.com and they have a Duralast 90 AMP alternator for 139.99, and a core charge of $70...

Think this one will do the trick?

 

[stevemainian]

Just get the replacement.

And a capacitor will help.

 

[SHOZ123]

A cap indeed will draw current to charge itself. When it gets discharged then it will add load to recharge.

 

[93whiteatx]

I found a website that has a lot of parts. But i'm sorry to say they are used but most of them have like 60k on them for like 60$.