Author Topic: does this sound like an alternator problem?  (Read 1680 times)

0 Members and 1 Guest are viewing this topic.

Offline rehmus

  • Jr. Member
  • *
  • Posts: 22
  • Referrals: 0
does this sound like an alternator problem?
« on: October 13, 2007, 09:35:57 PM »
OK.. so on my 78 TA at low idle (500rpm) the lights begin to flicker with the engine idle, and the alternator gauge is all over the place.. but if its running at 1000rpm or better everything is copasetic.  Any ideas where the source of this issue might be?  could it be a weak battery, alternator, electrical wiring, etc?

Offline Joker (§ir£Ğragon)

  • Lifetime Member
  • *****
  • Posts: 4994
  • When you think it can't get any worse...God laughs
  • Referrals: 0
Re: does this sound like an alternator problem?
« Reply #1 on: October 13, 2007, 09:55:43 PM »
Well, three things come to mind. You're idle may be a little low, your belt may be loose, or the alternator isn't getting a signal through the brown wire to actively charge.
Larry


Offline milly

  • Adv. Member
  • ****
  • Posts: 1713
  • Referrals: 0
Re: does this sound like an alternator problem?
« Reply #2 on: October 13, 2007, 11:25:00 PM »
Quick tip: to see if the alt is charging when the engine is running, touch the back or the alt. with a metal screw driver or knife blade. If the alt. is magnatized (the screw driver or knife blade will be pulled to the alt. case), then the alt. is charging.
John
1981 Trans Am
1996 Firebird

Central Illinois Firebirds
Ohio Firebirds

Offline milly

  • Adv. Member
  • ****
  • Posts: 1713
  • Referrals: 0
Re: does this sound like an alternator problem?
« Reply #3 on: October 14, 2007, 12:10:09 AM »
Only if you touch the wiring connectors while you're grounded Hammer. Stick your tongue on it like the way you would test a 9 volt battery.  ;) ;D
John
1981 Trans Am
1996 Firebird

Central Illinois Firebirds
Ohio Firebirds

Offline Joker (§ir£Ğragon)

  • Lifetime Member
  • *****
  • Posts: 4994
  • When you think it can't get any worse...God laughs
  • Referrals: 0
Re: does this sound like an alternator problem?
« Reply #4 on: October 14, 2007, 12:51:12 PM »
Only if you touch the wiring connectors while you're grounded Hammer. Stick your tongue on it like the way you would test a 9 volt battery.  ;) ;D

Or better yet, get your wife/girlfriend to. ;D
Larry