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1990 Chrysler Le Baron Battery sporadically discharges, car

Tiny
B SEA
  • MEMBER
  • 1990 CHRYSLER LE BARON
  • 6 CYL
  • 2WD
  • MANUAL
  • 15,000 MILES
Seem to have a sporadic electrical problem that discharges new battery. Typically car runs fine one day but once in awhile well sitting overnight (sometimes even a few hours), battery looses its charge & car will not turn over. Alternator is OK battery is new. Testing with meter has not shown current draw when key off but now & then with car parked I have rarely detected a 'click' sound coming from under the dash? Or firewall? On the passanger side.
This is very inconsistent & hard to get a bearing on. It may do it 2 or 3 times then you could run over to the parked car & stand for an hour & not hear it again.
Car is otherwise immaculate. Any ideas folks?
Thanks,
BSea
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Friday, October 24th, 2008 AT 11:08 AM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
When they checked the alt output, did they check for a bad diode?
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Tuesday, March 17th, 2009 AT 10:50 AM
Tiny
B SEA
  • MEMBER
  • 4 POSTS
Yes, the shop had checked the alternator & said the diode checked OK & no current draw when shut off.
We finally got around the problem simply by using one of those battery terminal switches. A minor inconvenience but the car is used infrequently.
Thanks.
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Saturday, March 28th, 2009 AT 11:31 AM

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