Question about 2006 Ford Focus

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2006 focus LS LX Hathback 2.0lt 45000 km on clock.On start up car revs high on two occasions car started to miss run rough then converted to limp mode on message centre [engine failure] the local Ford Dealer has swaped some parts from anouther car to no avail thinks it could be the PCM. Could this be the problem,if so how much will it cost to replace PCM or can it be fixed by a tec. cheers Harry.

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  • couttshr2 Apr 07, 2011

    Yes thank you. Luky for me your answer was not the problem,
    the problem was a split vacum hose.
    cheers harry.



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The PCM is the computer that determines all the parameters of the engine and the transmission. If it's defective it must be replaced - it's a sealed device that should not be opened for repairs: it can be opened but this is an extremely bad decision since this can do way more damage than it can fix. The dealer should have a specialized tester to determine if it's faulty - unfortunately this is a very common defect so yes, almost surely this is also your case.
A new PCM costs around £50 when purchased from a parts dealer, less than £35 when you get it from a scrap yard. To that you must add another £100 for the install and the programming/pairing it to the car.

Posted on Apr 02, 2011


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