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08-03-2014, 09:47 PM
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#1 | |
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AF Newbie
Join Date: Oct 2008
Location: Novi, Michigan
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02 4.6 won't crank, odometer reads all dashes
Mountaineer stalled while turning. Would not crank when I tried to restart. The odometer and temp read all dashes. Checked grounds, switched out relays and checked fuses. All looked good. Any suggestions?
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08-04-2014, 08:57 AM
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#2 | |
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AF Newbie
Thread starter
Join Date: Oct 2008
Location: Novi, Michigan
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Re: 02 4.6 won't crank, odometer reads all dashes
I followed some steps I read online and checked the PCM. The grounds seem to be good, although I don't think I'm getting power. Does anyone know how the power is fed?
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08-25-2014, 04:52 PM
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#3 | |
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AF Newbie
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Location: Novi, Michigan
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Re: 02 4.6 won't crank, odometer reads all dashes
Turned out to be the PCM diode.
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08-25-2014, 09:48 PM
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#4 | |
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SHO No Mo
 
Join Date: Jun 2004
Location: Cedar Rapids, Iowa
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Re: 02 4.6 won't crank, odometer reads all dashes
Very interesting. Do you have any idea why a bad PCM diode would only cause issues when turning? When diodes fail they typically either fail open or fail shorted. I can't say I've ever heard of one failing intermittently.
-Rod |
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