dead battery

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  #1  
Old 03-12-06, 09:23 AM
t-bird
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Question dead battery

87 t-bird,3.8, 100,000 miles, all original :starter, starter relayand ignition switch. New: bat & cables.
The battery was four years old and the cables were getting damaged w/acid. Both were replaced and the car started and all was well for 24 hrs. Car was dead so replaced the new bat. 24 hrs later-dead, less than 4volts. I have not removed the starter to have it tested. Could it be ignition switch, starter, or relay and how to test switch? Just before the elect trouble I noticed that the radio began to pick up a lot of engine's rpm sounds.
 
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  #2  
Old 03-12-06, 09:29 AM
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Join Date: Feb 2006
Posts: 361
With car running test batt. volts at batt. must be 13-14 plus If not Check price of new alt. or regulator. (This is juist my opinion.)
 
  #3  
Old 03-12-06, 11:37 AM
LouBazooka's Avatar
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Originally Posted by t-bird
87 t-bird,3.8, 100,000 miles, all original :starter, starter relayand ignition switch. New: bat & cables.
The battery was four years old and the cables were getting damaged w/acid. Both were replaced and the car started and all was well for 24 hrs. Car was dead so replaced the new bat. 24 hrs later-dead, less than 4volts. I have not removed the starter to have it tested. Could it be ignition switch, starter, or relay and how to test switch? Just before the elect trouble I noticed that the radio began to pick up a lot of engine's rpm sounds.


agree with 442 also see if there's something draining juice off the batt overnight.
 
  #4  
Old 03-13-06, 10:13 AM
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Location: Owen Sound Ontario Canada
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"radio began to pick up a lot of engine's rpm sounds"

I agree with the rest. I think one of the diodes are gone. Have the alt. output tested by a pro
 
  #5  
Old 03-14-06, 07:24 AM
t-bird
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thanks. had the alt ck'd and it was the cause.
 
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