All this started when my battery light came on my p5 randomly but went away 5 seconds after, then some burning smell was coming from the car when i got out to check what happened but saw nothing.
Later that day took the car to oreillys to do a battery test because the battery light was flickering on and of when i accelerated, test said the battery wasn't getting enough voltage and was low (11 volts) so i bought a refurbished alternator from oreillys and went home to change it.
When i get under the car i see that the stud that the positive lead from the alternator is all melted (where the burning smell came from) also the little cover on the terminal was melted all the way, and the terminal itself was welded to the stud because the damm nut came completely off and left the terminal doing its thing when i was on the highway.
So now I've changed the alternator and went to test the car all the lights get super bright and my trans (i have an auto) started doing some funny stuff, i guess it was because of the voltage so i take the car to the store again and when they do the battery test, idle voltage was fine but as soon as i went more than 2500 rpm the voltage just went up like crazy to 17-18 volts so the store guy told me to just swap it because it might be bad as it was a refurbished one, so i do that and the new one its still doing the same thing but now i can do 4000 rpm until it goes crazy.
At that point i was frustrated because the damm thing blew all my headlights and i've read that those oreillys alternators are junk, so i returned that one and went to autozone to get a brand new one and that's where i am now, and it got better because the trans didn't do the weird stuff that it was doing (i think it was trying to downshift but something happened that it was kicking like crazy when i tried to go hard on the accelerator) but the voltage is still going up at 6400 rpm, and i don't know what to do anymore I've checked most grounds took a look into the fuse box, replaced the battery, changed the little actuator on top of the starter, cleaned the battery terminals and the thing is still the same, and now im thinking the ecu got damaged or something when the nut came loose, any a help or advise?
Later that day took the car to oreillys to do a battery test because the battery light was flickering on and of when i accelerated, test said the battery wasn't getting enough voltage and was low (11 volts) so i bought a refurbished alternator from oreillys and went home to change it.
When i get under the car i see that the stud that the positive lead from the alternator is all melted (where the burning smell came from) also the little cover on the terminal was melted all the way, and the terminal itself was welded to the stud because the damm nut came completely off and left the terminal doing its thing when i was on the highway.
So now I've changed the alternator and went to test the car all the lights get super bright and my trans (i have an auto) started doing some funny stuff, i guess it was because of the voltage so i take the car to the store again and when they do the battery test, idle voltage was fine but as soon as i went more than 2500 rpm the voltage just went up like crazy to 17-18 volts so the store guy told me to just swap it because it might be bad as it was a refurbished one, so i do that and the new one its still doing the same thing but now i can do 4000 rpm until it goes crazy.
At that point i was frustrated because the damm thing blew all my headlights and i've read that those oreillys alternators are junk, so i returned that one and went to autozone to get a brand new one and that's where i am now, and it got better because the trans didn't do the weird stuff that it was doing (i think it was trying to downshift but something happened that it was kicking like crazy when i tried to go hard on the accelerator) but the voltage is still going up at 6400 rpm, and i don't know what to do anymore I've checked most grounds took a look into the fuse box, replaced the battery, changed the little actuator on top of the starter, cleaned the battery terminals and the thing is still the same, and now im thinking the ecu got damaged or something when the nut came loose, any a help or advise?
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