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Recurrent crank sensor fault


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#1 Trundle

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Posted 01 October 2009 - 11:52 AM

Hello, Iím completely new to this forum so please donít be too hard on me! I have a 2006 06 Focus Zetec, which has run absolutely perfectly, until I had it serviced and MOTíd at a main dealer in April this year. Since then, there has been a recurring intermittent fault.

First, the rev counter repeatedly cuts out. Initially, it will ďrecoverĒ and begin working again, but after a day or so, it will cut out immediately upon starting the engine, and not work at all. At that point the engine will begin to cut out, even when travelling at speed, and after a day or so, it will not start at all. The engine management light comes on and stays on, and connecting it to a fault reader thing shows up as (I think) fault 32, faulty crank sensor.

I replaced the crank sensor and cleared the fault, the first time this happened, in May 09. I have since had the car into the main dealer three times for the exact same problem. I know its not a physical problem with the crank sensor itself , because once the fault is cleared from the system, the car runs smoothly again for a period, and the fault canít be forced to repeat.

It seems to be damp-related, as it has happened every time we have had a spell of rain, but I canít prove this. The dealer wonít even look under the bonnet, because they canít replicate the problem, and simply tell me that even if it is a loose wire, there are miles and miles of wiring inside the engine and they canít (wonít?) check it all. I know as soon as it starts to rain again, I will have a useless car. I have considered buying one of those code readers, so that I can clear the fault myself Ė would this be a good idea?

Thanks in advance for any and all suggestions!

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#2 artscot79

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  • Name: arthur
  • Ford Model: focus mk2 ti-vct
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Posted 01 October 2009 - 02:55 PM

Hello, Iím completely new to this forum so please donít be too hard on me! I have a 2006 06 Focus Zetec, which has run absolutely perfectly, until I had it serviced and MOTíd at a main dealer in April this year. Since then, there has been a recurring intermittent fault.

First, the rev counter repeatedly cuts out. Initially, it will ďrecoverĒ and begin working again, but after a day or so, it will cut out immediately upon starting the engine, and not work at all. At that point the engine will begin to cut out, even when travelling at speed, and after a day or so, it will not start at all. The engine management light comes on and stays on, and connecting it to a fault reader thing shows up as (I think) fault 32, faulty crank sensor.

I replaced the crank sensor and cleared the fault, the first time this happened, in May 09. I have since had the car into the main dealer three times for the exact same problem. I know its not a physical problem with the crank sensor itself , because once the fault is cleared from the system, the car runs smoothly again for a period, and the fault canít be forced to repeat.

It seems to be damp-related, as it has happened every time we have had a spell of rain, but I canít prove this. The dealer wonít even look under the bonnet, because they canít replicate the problem, and simply tell me that even if it is a loose wire, there are miles and miles of wiring inside the engine and they canít (wonít?) check it all. I know as soon as it starts to rain again, I will have a useless car. I have considered buying one of those code readers, so that I can clear the fault myself Ė would this be a good idea?

Thanks in advance for any and all suggestions!

take the car back and demand the fault is recttified and tell them its only been since the service youve had this problem make a fuss make a scene and if they refuse get the manager if he refuses you tell him to pick up the phione and call the head office so you can speak to asomeone higher up the problem needs fixed continually clearing the cosde is not the answer if necessary leave it with them


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