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Old 11-22-2011, 08:19 PM   #1
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Question Little black box???

On the rear left part of the motor (looking from front of car) there is a little 1"x1" black box that has what looks like a ground wire going right to the passenger side strut mount bolt. Not sure what it goes to but it has its own mounting bracket that bolts to the motor right by the header. What is it?!?!?! It's driving me nuts because the little black grounding wire popped out and ever since that my speedo and tack have been acting funny. Sometimes they will get stuck in a position (usually around 1500 RPM's) then it will go away after a few seconds. Think this might have something to do with it. Any insight would be greatly appreciated.


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Old 11-22-2011, 08:32 PM   #2
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Here is an image of what I am talking about. I circled the black box and components in red. And whomevers picture I stole, I appologize. If you see it and would like me to remove it just let me know.
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Old 11-23-2011, 12:15 AM   #3
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What image?
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Old 11-23-2011, 01:57 AM   #4
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The giant one above your post....
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Old 11-23-2011, 02:24 AM   #5
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ha fail.

I can't tell all that well but it sounds like the noise filter which on these all seem to come apart.
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I had a spare tire go up in flames once, my truck was hit with an rpg though.
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Old 11-23-2011, 06:42 AM   #6
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Can't see the picture, but based on the description, sounds like the radio frequency isolator, which filters out engine noise from getting to your radio.
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Old 11-23-2011, 06:44 AM   #7
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I don't see a image but I believe that needs to be attached. Maybe find a replacement in the junkyard focus and swap them out.
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Old 11-23-2011, 08:25 AM   #8
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Its right in the right top corner of my degas container, you can just barely see it .

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Old 11-23-2011, 12:01 PM   #9
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Actually on my way to the dealer right now to get a new one for the Fusion. Thing is so weak, it can't hold up to a 1-ton hoist pulling an engine out if you forget to disconnect it.

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Old 11-23-2011, 01:30 PM   #10
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Ok, thanks everyone. Just curious because I couldnt find any older posts on the matter. Thanks for the help and sorry the picture didnt show up. I can see it just fine when I open this post lol
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