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Thread: BCM.......... electrical smell?

  1. #1
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    BCM.......... electrical smell?

    Hey guys, thinking that the bcm has given it up this morning.
    Have gotten an electrical smell a few times in the last couple weeks, but couldn't figure what it was. Any how no blower this morning. BCM?

    Best place to get one? Aftermarket or dealer only?
    Last edited by BigM460; 09-03-2015 at 06:57 AM.

    Chris Stewart
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  2. #2
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    Remove it and re-solder.

    That's all it needs

  3. #3
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    Quote Originally Posted by Zack View Post
    Remove it and re-solder.

    That's all it needs
    Guessing the issue will be obvious?

    Chris Stewart
    03 Marauder
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    04 DTR Son's car
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    06 F-150 Supercrew Lariat 4x4
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  4. #4
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    Quote Originally Posted by BigM460 View Post
    Guessing the issue will be obvious?
    Most likely.
    The solder joint fails.

  5. #5
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    Electrical smell=burning wires=fire?
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  6. #6
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    Quote Originally Posted by Zack View Post
    Most likely.
    The solder joint fails.
    Right on! Thank you!

    Chris Stewart
    03 Marauder
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  7. #7
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    Quote Originally Posted by slickster View Post
    Electrical smell=burning wires=fire?
    Not necessarily in this case.

    The heat sink for the switching transistor that has the bad solder joints sticks right out in the HVAC airflow, so even the relatively small amount of heat/smell from the bad solder joint(s) will be easily detectable.
    Last edited by RF Overlord; 09-03-2015 at 04:12 PM. Reason: spelling
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  8. #8
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    Bad solder joint = higher resistance = possible burning smell.

    If you are going to buy one ONLY get a Motorcraft one, about $75.00. Aftermarket BCM's have a very short life and sometimes don't work at all.

    I have repaired BCM's available. PM me if interested.
    “When you can’t make them see the light, make them feel the heat.”
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    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

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    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
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  9. #9
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    Yes! I love A/C

    Thanks again Zack!

    Back in action, just had one terminal that looked questionable. Was one of the large terminals were it was soldered to the board.
    30 minutes and $0 dollars!
    Gotta love that.

    Chris Stewart
    03 Marauder
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    04 DTR Son's car
    4.10, K&N CAI, Jeff tune
    Headers, underdrive pulley
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    06 F-150 Supercrew Lariat 4x4
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  10. #10
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    Quote Originally Posted by BigM460 View Post
    Thanks again Zack!

    Back in action, just had one terminal that looked questionable. Was one of the large terminals were it was soldered to the board.
    30 minutes and $0 dollars!
    Gotta love that.
    love this forum.....good deal Chris
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  11. #11
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    I want to know how you removed it, repaired it and re-installed in 30 minutes!

    That job is tough

  12. #12
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    Quote Originally Posted by Zack View Post
    I want to know how you removed it, repaired it and re-installed in 30 minutes!

    That job is tough


    Guessing it was 30 minutes. Got it out in 15 minutes, wife called in to dinner, repaired and reinstalled. Was maybe an hour and half from the time I got home until done, but that included putting a big fan on the car to cool, poopy time, and dinner. Hope that's enough info?

    Chris Stewart
    03 Marauder
    Paxton 2200
    20" wheels
    637.21rwhp
    538.59rwtq

    04 DTR Son's car
    4.10, K&N CAI, Jeff tune
    Headers, underdrive pulley
    297.26 rwhp
    312rwtq

    06 F-150 Supercrew Lariat 4x4
    305/55 20's

  13. #13
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    Interesting, my blower fan has decided to be possessed and turns on and off randomly.

    I assume I'm dealing with the same problem?

    Anyone got pics or any more detail re removal etc?

    Thanks

    Bob
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  14. #14
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    Quote Originally Posted by Bobby Clobber View Post
    Interesting, my blower fan has decided to be possessed and turns on and off randomly.

    I assume I'm dealing with the same problem?

    Anyone got pics or any more detail re removal etc?

    Thanks

    Bob
    Everything you need to know is here

    http://mercurymarauder.net/forums/sh...ad.php?t=48707

    You need a soldering iron that is big enough, wattage wise to repair it.
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




  15. #15
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    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




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