Buzzing at CCRM | Ford Escort Owners Association (FEOA)
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Buzzing at CCRM

Discussion in 'ZX2 1998-2004 2.0L DOHC' started by FordMan59, Jun 16, 2009.

  1. FordMan59

    FordMan59 FEOA Member

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    I had someone ask me if I knew what would cause a buzzing at the CCRM. They said the engine would turn over fine, but it wouldn't start and there was a buzzing at the CCRM. If anyone has ever experinced this please let me know what the problem was.
  2. madmatt2024

    madmatt2024 FEOA Member

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    Given that the CCRM is full of relays I would guess that one of them is making the noise. Its either bad or not getting enough voltage. Swapping in another CCRM would be a good start, just to see if it works.
  3. FordMan59

    FordMan59 FEOA Member

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    The CCRM that was in his car worked fine in another car.
  4. ZX2Fast

    ZX2Fast New Member

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    This buzz can be caused (I've seen this happen in person) by a bad ground. Most likely it is the ground at the little black box on the negative battery terminal.
  5. FordMan59

    FordMan59 FEOA Member

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    OK, this is really wierd. The guy told me that the car was not firing and that the buzzing would stop when he removed the fuse to the fuel injector. He said that he removed and re-plugged the fuel injector fuse about 10 times and the car started. So I guess there was corosion on the fuse and/or fuse holder contacts that was keeping it from getting full power. The thing I don't understand is why it wouldn't fire if it was the fuel injector fuse??? Can any one explain this??? I would like to know why.
  6. 99scortlx

    99scortlx New Member

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    i have delt with this bc my car was blowing fuel injc fuses and it turned out to be my alt but the fuel injc fuse powers the ecu through a relay in the ccrm and it powers multiple sensors in the engine bay before it gets to the ecu.
  7. pextor

    pextor Moderator Staff Member

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    a friend and I were working on a 99 sedan that had a buzzing ccrm and no start condition. we gave it a whack (last resort) and it stopped buzzing and the car started.
  8. Dutch

    Dutch Guest

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    A demotivational poster for ya:

    [​IMG]
    PERCUSSIVE MAINTENANCE
    Sometimes, when the thing's broken, and you're faced with
    replacing it, whacking the thing actually *does* work.
  9. pextor

    pextor Moderator Staff Member

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    dutch for the win!

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