Alternator doesn't charge unless/until turbo makes boost...?
#1
Alternator doesn't charge unless/until turbo makes boost...?
I can't figure this out...
When I start my car, the PFC reads a bat volt of anywhere between 11-12 volts. Now, if I drive around without ever making any boost, the battery voltage does not charge - instead it slowly drops!
However, if I get the car into boost, the voltage will suddenly jump up to 13-14 volts, and stay right around that level.
I have a brand new battery, and a recently purchased reman'd alternator.
I went and had the system checked, and they said the testing machine reported an issue with the clip off the harness that connects to the alternator, but no matter what I do to it, the problem still persists! I've taken the connector off numerous times, checked the internal clips, cleaned the terminals, etc.
WHAT THE HECK???
When I start my car, the PFC reads a bat volt of anywhere between 11-12 volts. Now, if I drive around without ever making any boost, the battery voltage does not charge - instead it slowly drops!
However, if I get the car into boost, the voltage will suddenly jump up to 13-14 volts, and stay right around that level.
I have a brand new battery, and a recently purchased reman'd alternator.
I went and had the system checked, and they said the testing machine reported an issue with the clip off the harness that connects to the alternator, but no matter what I do to it, the problem still persists! I've taken the connector off numerous times, checked the internal clips, cleaned the terminals, etc.
WHAT THE HECK???
#3
well i do have an underdrive pully on the alternator...but lots of people do!! no one else seems to have this problem...?
yeah i think i need to do that. what SUCKS is that the reman is gonna take more than a week to get in...and i'm supposed to drive back up to new york 1 week from today!!
RICH, HOOK A BROTHA' UP with one of those COOL GUY IRP ALTERNATORS!!!
yeah i think i need to do that. what SUCKS is that the reman is gonna take more than a week to get in...and i'm supposed to drive back up to new york 1 week from today!!
RICH, HOOK A BROTHA' UP with one of those COOL GUY IRP ALTERNATORS!!!
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#8
OK so last night i'm driving home...
5th gear, 60mph...voltage sitting at about 13v...
then suddenly, my dash lights get super bright and i look down and the voltage is at 15.9v!!!
i pulled into a parking lot and before i was even parked my headlights went out (blown bulbs)
now i'm really confused. bad voltage regulator? that's built into the alternator on our cars, correct?
5th gear, 60mph...voltage sitting at about 13v...
then suddenly, my dash lights get super bright and i look down and the voltage is at 15.9v!!!
i pulled into a parking lot and before i was even parked my headlights went out (blown bulbs)
now i'm really confused. bad voltage regulator? that's built into the alternator on our cars, correct?
#9
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iTrader: (41)
Sounds like a bad regulator and yes it is internal. Stop driving the car or you are going to fry something. I melted down the entire body harness in one of my rx-7s once with a similar problem. The regulator gets replaced with my upgrades. Shoot me a pm I owe you a favor anyway.
Last edited by IRPerformance; 05-30-09 at 11:38 AM.
#12
Goodfalla Engine Complete
iTrader: (28)
Hmmm....
I always avoid the reman swap big stores, unless its for my s10 work commuter. Find someone that knows what they are doing. Not saying that the big box stores don't, they just don't have any personal investment.
Plus, if you are running an underdrive pulley, you really should be running an upgraded alternator anyways.
I always avoid the reman swap big stores, unless its for my s10 work commuter. Find someone that knows what they are doing. Not saying that the big box stores don't, they just don't have any personal investment.
Plus, if you are running an underdrive pulley, you really should be running an upgraded alternator anyways.
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blkops
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