Alternator being a PITA

[Omni]

Well happy july 4th to everyone hope u guys had a good day....uhm well on to the issue today i wanted to clean up the car and do some work on it....so i took the lowerharness off and tried to figure out a way to make it look more decent so after like a hour in the baking sun i couldnt figure anything out so i decided to put it back and just say wth to get outta the sun...so when i get to putting the alternator back...after i put in the plug and the positive wire...i go to put the battery terminal back on and i am getting some feedback...nothing major some slight but with that slight feedback the postive wire is getting hot...and all i messed with was to take the loweharness off and before it was working fine

[bigfootap]

check the little ground on the alternator

[Omni]

what little ground i only have the plug and the thick power wire...smh i dont see anywhere to hook up that little ground

[Yellow4g63]

it's a small 8mm bolt. it's a small ground strap by itself.

[Omni]

it's a small 8mm bolt. it's a small ground strap by itself.

i think i have all my ground grounded...but before that the damn alternator wasnt giving no form of feedback and car was working fine i dunno why it decided to be a ***hole now...s*** is pissing me off...and i didnt even mess with nothing else thats why i am getting mad how can something just start acting up like that smh

[Omni]

ok the car doesnt get any form of power when the power is on the alternator i dunno why but when i take it off the car can start

[StricNyne]

check ground on the block that can cause you grief, i had to reground my motor i did the head, block on both sides, and the alt. from there maybe invest in larger gauge wiring with high qual ring terminals. just run seperate grounds like that to the chassis

[Omni]

check ground on the block that can cause you grief, i had to reground my motor i did the head, block on both sides, and the alt. from there maybe invest in larger gauge wiring with high qual ring terminals. just run seperate grounds like that to the chassis

i hear what ur saying about the grounds but its unbelievable that all this crap is happening just because i took out the loweharness...it was fine the hours before...and also what i dont get is how can it be a ground when...after i take the power wire off the alternator the car seems to want to work...but then the power wire is on..the car behaves as though the alternator fuse is blown cauuse i am getting no form of power nowhere???

[Omni]

well guys i think my car destroyed my battery..but anyway on to it...i put everything back together and the car still didnt get any power so i put my booster on and then the car got power and was working fine...but for some reason the alternator bolt was getting hot...and also when i take out the alternator fuse the car still had power to it...smh at this mess

[StricNyne]

did u check relays

[Omni]

i did they all seem to be working....i dunno what else

[StricNyne]

seem working or did u test them, could be stock in open position it is a like 20 year old car, my buddy is having SAME problem on diff car

[mixeds14]

sounds like that thick red wire is grounding out on the alt.housing causing it to get hotand/ get that feedback, make sure that wire is on there right..

if the car will stay on with it unplug, its because its running on the batt juice and not the actual alt.. disconeect the batt n see if it will stay running just to make sure ur alt ints screwed up.. also a bad voltage regulator can cause that too wich means ur alt is bad.

[Omni]

ok i will check it once i get a new battery...but im thinking about getting a 2nd gen rx7 which is more of in my area even though i woulda love to run this car...but dont seem like it wants me to run it hahaha smh

[jetdriver]

sounds like that thick red wire is grounding out on the alt.housing causing it to get hotand/ get that feedback, make sure that wire is on there right..

if the car will stay on with it unplug, its because its running on the batt juice and not the actual alt.. disconeect the batt n see if it will stay running just to make sure ur alt ints screwed up.. also a bad voltage regulator can cause that too wich means ur alt is bad.

DO NOT disconnect your battery while the car is running! That is an old school trick that worked in the early 80's and older cars. All modern cars need the battery in the system as an accumulator to absorb voltage fluctuations. The voltage regulator cannot handle the spikes without a battery in series. Jump starting your car or someones car can cause the same problem. I have replaced ecms on mitsubishis and nissans from people jumping the car constantly because they were too cheap to replace the battery.

Your problem sounds like a bad diode in the alternator leaking to ground causing a short. Put a good charged battery on your car and unplug the alternator wires, plus the big charge wire, and see if it starts. You do not need an alternator to run your car for short term (15-25 minutes), but you will need a method of recharging the battery.

[Omni]

when i started the car without the alternator it ran fine...and thats how i figure i destroyed another battery