Battery light after alternator change?
#1
Battery light after alternator change?
So heres the deal.Attempted to change the alternator on my 6.0 for failing an idle test.Batteries are new and would charge fine driving around town.Just not at idle.If i rev up to 2k they charge fine. Changed out the alt. and now have a battery light.Never had it before.Drove around town for a while and never went out.Was gonna try another alt. but they didnt have anymore.So i put the old one back on and the battery light is gone. Why would thhe battery light come on with a new alt? Oh and the new alt was a remanufactured.Gonna try a brand new one tomorrow.Hope this all makes some kind of sense
Last edited by dano89406; 09-01-2012 at 09:56 PM. Reason: forgot something
#2
shure does make sense
I take it its an alt from a Chain store???? The Neww alternator is Bad seen this Many Many times before with chain store alternators
DC Power is Hands Down the Best if you can afford it
DC Powers alts have a smaller pulley so it can put out more power at Idel when you really need it most especialy when Cold out
Have you cleaned all connections even the grounds where they mount tot the truck and engine??? I still think the Alternator is Bad but good to make shure you have good connec tions
I take it its an alt from a Chain store???? The Neww alternator is Bad seen this Many Many times before with chain store alternators
DC Power is Hands Down the Best if you can afford it
DC Powers alts have a smaller pulley so it can put out more power at Idel when you really need it most especialy when Cold out
Have you cleaned all connections even the grounds where they mount tot the truck and engine??? I still think the Alternator is Bad but good to make shure you have good connec tions
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#6
You see this at all times. The bad apple in the barrel.
I had an alt re-built for a Ranger I had because Ford
did not have any yet too new (1988) So I had it done
at a local shop that only does alt and starters.
Well got it home and plugged it in and blew the headlights
with too high of voltage. Turned out the new regulator
that was installed was bad. So I would do what Daddykitty
says and have then test it before you go.
Sean
I had an alt re-built for a Ranger I had because Ford
did not have any yet too new (1988) So I had it done
at a local shop that only does alt and starters.
Well got it home and plugged it in and blew the headlights
with too high of voltage. Turned out the new regulator
that was installed was bad. So I would do what Daddykitty
says and have then test it before you go.
Sean
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#8
FWIW this kinda stuff is very hard on the 6.0L electronics^^^^I see it all the time here too
I have a china alt on my car but it goes at 1 per year so far but car dont have the type of electronics to damage the 6.0L does
DC Power alternators are well worth it and its a HUGE Improvment over China CRAP
https://www.dcpowerinc.com/
that Cheap China alternator IS very High Risk Gamble not worth it IMO
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heres a pic of my DC 190amp with the wire upgrade
and some more pics
Ford Truck Enthusiasts Forums - BLADE35's Album: DC Power Alternator & Wire Upgrade
I didnt get any shims with mine and it has worked just fine at all times with A/C on
for some reason I thought the 250-270amp alt were the ones that need the Shims
and some more pics
Ford Truck Enthusiasts Forums - BLADE35's Album: DC Power Alternator & Wire Upgrade
I didnt get any shims with mine and it has worked just fine at all times with A/C on
for some reason I thought the 250-270amp alt were the ones that need the Shims
#15
heres a pic of my DC 190amp with the wire upgrade
and some more pics
Ford Truck Enthusiasts Forums - BLADE35's Album: DC Power Alternator & Wire Upgrade
I didnt get any shims with mine and it has worked just fine at all times with A/C on
for some reason I thought the 250-270amp alt were the ones that need the Shims
and some more pics
Ford Truck Enthusiasts Forums - BLADE35's Album: DC Power Alternator & Wire Upgrade
I didnt get any shims with mine and it has worked just fine at all times with A/C on
for some reason I thought the 250-270amp alt were the ones that need the Shims