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Old 03-25-2008, 08:12 PM
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serious help needed please

I have a 2002 F350 7.3 and have a problem with it. It keeps making the "CPS" failure symptoms. It dies when running and won't start for a while (10 - 30 minutes) and then it runs again but dies again. I have changed the CPS sensor 5 times in the past 4 days and it keeps doing the same thing. I have no CEL and I hooked up the scanner and reads nothing and there are no codes saved in the memory either. I tried another PCM and that did not fix the problem. I am running out of ideas here. Any help would be greatly appreciated.
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Old 03-25-2008, 08:16 PM
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I'm not sure if it's the crank position sensor or cam position sensor that's the recall. But whatever you've replaced, could be the other one too?
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Old 03-25-2008, 08:29 PM
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What kind of scanner are you using? Are you watching the data stream when it dies?
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Old 03-25-2008, 08:33 PM
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just cause it acts like a sensor check your wiring going to the sensor a rubbed through wire going to ground or a damaged one will also give you this problem
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Old 03-25-2008, 08:40 PM
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Quote:
Originally Posted by Peppy View Post
just cause it acts like a sensor check your wiring going to the sensor a rubbed through wire going to ground or a damaged one will also give you this problem
Yes, done that and still the problem persists.
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Old 03-25-2008, 08:44 PM
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Could be the fuel system.
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