I have replaced the alt 3 times in the past 2 months and everything is still dieing... ppl have said my batt is good... has neone had this problem and if so can u tell me how to fix it...

 

Id reconsider the alternator you keep putting in...clearly not the best quality part.

 

What has made you think that the alternator needs replacing? Have you had the battery/charging system checked on the appropriate testing equipment?

*Moving to 2nd Gen Tech* - Your profile states Year: 2001 so I am just moving this to the appropriate section. Please put your complete vehicle information in your signature and attach it to your posts.

 

i had my originalalt tested at autozone they said it was done... then i lost all power again took it in again and they said it was bad, and i did that all over again... now i am just starting to get really frustrated with it all... every morning i goto start it up there is nothing at all... then when i am driving it i come to a stop light or stop sign i c my voltage just drop.. it goes from a lil above 14 to right round 9.5 to 10... any guess what is wrong???

 

Well it is possible the alternators you are getting are really low quality. It is also possible you have a high load somewhere in the electrical system. Possibly something is failing like an amp or some other addons.

 

Like swartlkksaid. Have you had it tested at a service center. I bet you have a bad engine ground, bad terminal, or a coroded battery cable myself. These drive up (Idon`t likeAutozone, they seriously try to do too much)quick test things are no good with a vehicle that has more than 75,000 miles on it. There are just too many possible reason your batteryor alternator fry like that with more than 75,000 miles on the clock.

 

i do have a high amp draw from my stereo system... even when i unhook that i still have all the problems... when u say i might have a bad engine ground where should i look to c if that is loose... bad terminal is out cuz i checked the batt bolts and those r clean... and what is a coroded battery cable??? now me gettin a low quality alt is deff and good possiablity because my boss has gone threw multipul alt just like i have and he got them from the same place... the only addon he has on his truck is a snow plow... its cold now and i don't feel like fixing my blazer every day...

 

Engine ground - There is usually one off the back of the engine. Flat braided copper non sleeved wire and it goes to the Fire wall.



Battery cables run from the Battery to the starter, thus completing the charging circuit, and the negative goes to the frame... Look for crusty white, lime or mint green colored powder residue, corrosion.

* My Friend, Sam, forgot to hook his ground cable up on his 68 firebird and the charging system used the shifter cable for a ground - it then wouldn't shift out of drive! We were in high school at the time.

I would replace both of the cables, could be the best $30 you've spent - especially running asystem!

The thing to also rember when you're dealing with Wire and currentis that the current travels on the surface of the wire. So, if it's powdery and corroded then you're not getting full current through and it will put additional strain on you system.



Not saying yours looks like that but, I just wanted to show an extreme example. I don't wee how that junk could run...

 

hahhaa thanks... ya my batt looks like i just bought it... its a interstate, it just won't keep a charge i put it on a charger for like 14 hours last nite and it wouldn't keep the charge, so i finally just out the battery charger to start and started my blazer... i'll look for that ground wire... i keep getting the $hit shocked outta me when i get out also if that helps out at all...

 

ya so i went around to a couple garages today to c what all they would say bout my batt not keeping a charge... well the news is that the batt is good and the alt is shot... this will b my third 1 from auto zone in 2 months... don't buy new alt at auto zone... they r cheap and can't stand a load... they blow after a couple of days... thanks for every1's help... it was greatly appriciated