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Electrical question

Old Dec 6, 2007 | 08:45 PM
  #1  
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Question Electrical question

I have a 2001 F-150 XLY Super Crew 5.4

Going down the road the other morning, I turned on the dome lights with the rolling know on the dash. As soon as I did, the stero, and the dash lights started flashing.
They quit flashing when I turned off the switch. It is intermittent.

Today, I went out to get in the truck, it wouldn't start. Granted the truck has set for 3-4 days. The battery was replaced with a new MOTORCRAFT battery on Jan. 17th, '05

The way I read the ticket, (I may be wrong), it has a 7666cc battery. (I told them that I wanted the biggest battery that they could put in it at the time). It has a 100 month battery.

The last few days it has been outside. The last 2 days the temps have been 32-35 degrees.

Any ideas ??

{P.S. I'm not a mechanic !!!!! Think I should have FORD check it out ??}

Thanx
 
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Old Dec 6, 2007 | 10:09 PM
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Sounds like you have a bad dimmer switch and it caused the dome light to come on after you left the truck and ran the battery down.
 
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Old Dec 8, 2007 | 04:29 PM
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I had charged up the battery overnight, and then went to FORD yesterday to have the battery checked out. (It was 22 months old, with a 100 month warranty). They hooked it up, and checked it oout. 2 cells wouldn't come up to a full charge. Result: NEW battery, for free.

Additional check up: Am having the dome light switch checked out asap

Thanx, for your input.
 
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Old Dec 8, 2007 | 05:09 PM
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Fat Ford Boy, The dimmer does sound like is on the way out. A bad cell can discharge a battery. It can also throw off the Alt by trying to charge too much too long killing more cells.
 
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