electrical problem

[bish]

I own a 96 4cyl, 5spd Precidia and would like to know if anyone can help with this alternator/batt problem.<P>Last month I put in a new alternator and battery b/c they were both dead. Yesterday, as I was driving to school, I applied the breaks and my rev gauge started fluctuating rapidly between 1.5 and 3.5. Anyway, I got to class and when I went to left, the engine would turn slightly, but not start. Thought it was a dead battery, got it boosted and left it connected for about 5 minutes. I drove around for about 10 minutes before it died on me (charge batt. light was on lightly). I was still in the same situation.<P>All my electrical accessories work (headlights, wipers, stero, etc...) but it still won't start. A funny thing that happens is when I apply the brake while the stereo is running, it will cut the power to it and shut it off. (only since the car started reving funny when breaking and all)<P>Any thoughts or ideas on what might have caused my alternator to die on my again? and why does my stereo cut off when applying the break? Any help is appreciated.

[mzdspd]

i have stock alternator and when i apply the brakes while my stereo is on the tach bounces from like 500 3000 i think its cause i am trying to pull like 150 amps from a 70 amp alternator though its ok cause im getting a new one soon but good luck with ur peoblem cause i don't know what to tell u

[bish]

Hmmm...didn't really think about that one...<BR>my stereo has a built-in 200W amp in it and the alternator only pulls 70W (I think?)<P>Could running my stereo be the cause of my alternator dying twice?

[mx3man83]

I just know that there is something wrong with the mx-3 electrical system. I have a 600 watt amp, and a 100 watt amp, and when i have my system up and hit my breaks at a light or whatever my RPMs go kinda nuts...sometimes it idles higher to compensate for the power loss(from the brake lights and system), and sometimes it bounces up and down due to lack of power.

[Shades]

I had that same problem bish... I found out that I had a bad ground wire from the battery to the chassis of the car... start putting thicker grounds in... try that first. Make sure your battery terminal connectors are soundly on... my problem was a loose connector.

[Ogimoj]

Sounds like bad alternator to me... have it checked out while you still have warranty on the one you just bought...

[jaydog5678]

First thing I would check is the connections to the alternator. If that's ok I would recheck the alt. belt for proper tension(too loose). If thats fine you might have a faulty alternator.

[bish]

I did end up going to get it checked out and the alternator was giving out absolutely nothing, so I am glad to have it replaced under warranty, the only thing that sucks is that it's a long weekend. :\<P>And what makes the RPMs go all over the place when you apply the brakes? Is it related to the alternator?

[jaydog5678]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by bish:<BR><STRONG>I did end up going to get it checked out and the alternator was giving out absolutely nothing, so I am glad to have it replaced under warranty, the only thing that sucks is that it's a long weekend. :\<P>And what makes the RPMs go all over the place when you apply the brakes? Is it related to the alternator?</STRONG><HR></BLOCKQUOTE><P>It should'nt be related to the alt.<BR>About your brakes, I would have a shop look into that further.