charging problem...
09-22-2007, 12:20 AM
#1
6th Gear Member
Thread Starter
Join Date: May 2006
Location: earleville md
Posts: 10,357
charging problem...
ok so... the whole story
go to subway to grab some food the other day, get back out, and i had to jumpstart my car w. a buddies car, it wouldnt turn over.
next morning i had to bump it in 2nd to get it to start... not enough power to turn it over
this continues on for 2 or 3 days, having to jump it anytime to start it, then it would be fine running...
after a quick diag. of it at school i realized i had a drain on the batt. comming from my radio/int. light/etc circut.... that fuse is now temporaraly gone, so thats not an issue any more...
also in that diag. i realized my alt. was putting out a whole 12.xx... which is low for the should be 14ish.... and that the wire from the alt to the positive on the batt had 30 some ohms of resistance in it, so we run a new wire, and ohms are donw to 1.xx or whatever... so that wire isnt an issue any more, but still no more then 12.xx of a charge
so i determine my alt is bad, go take one off my friends 5.0, hook it up today, and if anything its worse now.. i was driving w. the head lights on and everyting dimmed untill the car died
took it to work to diag it w. my boss and everything is coming up right, alt is being signaled to do its job, there is power output, but still again only 12.xx ... too low on an alt. that i know is a good alt, or was when it came off of his car last night.
so.... everything is pointing toward a bad alt, that im 99% sure is good, because it was good when it came off his car
any thoughts?
go to subway to grab some food the other day, get back out, and i had to jumpstart my car w. a buddies car, it wouldnt turn over.
next morning i had to bump it in 2nd to get it to start... not enough power to turn it over
this continues on for 2 or 3 days, having to jump it anytime to start it, then it would be fine running...
after a quick diag. of it at school i realized i had a drain on the batt. comming from my radio/int. light/etc circut.... that fuse is now temporaraly gone, so thats not an issue any more...
also in that diag. i realized my alt. was putting out a whole 12.xx... which is low for the should be 14ish.... and that the wire from the alt to the positive on the batt had 30 some ohms of resistance in it, so we run a new wire, and ohms are donw to 1.xx or whatever... so that wire isnt an issue any more, but still no more then 12.xx of a charge
so i determine my alt is bad, go take one off my friends 5.0, hook it up today, and if anything its worse now.. i was driving w. the head lights on and everyting dimmed untill the car died
took it to work to diag it w. my boss and everything is coming up right, alt is being signaled to do its job, there is power output, but still again only 12.xx ... too low on an alt. that i know is a good alt, or was when it came off of his car last night.
so.... everything is pointing toward a bad alt, that im 99% sure is good, because it was good when it came off his car
any thoughts?
09-22-2007, 12:26 AM
#3
6th Gear Member
Thread Starter
Join Date: May 2006
Location: earleville md
Posts: 10,357
RE: charging problem...
yea see thats where the 30ohms was at... that wire is now basically bypassed and what would have been going thru it is now running through a new wire
next step is to pull the alt. on it now and bench test both just to be sure that one or both are in fact good... but we cant do that at work so ill do it tm or sunday
next step is to pull the alt. on it now and bench test both just to be sure that one or both are in fact good... but we cant do that at work so ill do it tm or sunday