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Need Help Cranks doesn't Start

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Old Aug 23, 2010 | 08:59 PM
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Default Need Help Cranks doesn't Start

Drove home last night all was good. This morning it would crank but will not start???
Flatbed to fix it shop. Power to the injectors and coil packs, fuel pressure, no codes. It just will not start.

HELP
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Old Aug 24, 2010 | 12:47 PM
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Somebody give this guy some help!
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Old Aug 24, 2010 | 01:24 PM
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Originally Posted by Old Rotor Head
Drove home last night all was good. This morning it would crank but will not start???
Flatbed to fix it shop. Power to the injectors and coil packs, fuel pressure, no codes. It just will not start.

HELP
Pull your codes Are the injectors firing? Do you have spark? Is the security light on?
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Old Aug 24, 2010 | 01:30 PM
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Originally Posted by rboineau
Somebody give this guy some help!
Didn't he already flatbed to a shop????
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Old Aug 24, 2010 | 08:19 PM
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BIG problem. Old battery acid wicked down my wiring harness and took out the PCM, ECM and destroyed more than half on the pin connections on the computer. Not a cheap fix.

Original battery leaked and went south 10 years ago. Looks like my dealership may have tried to save a few bucks and never changed the harness when they repaired the computer.

(Laymen's description)
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Old Aug 24, 2010 | 08:26 PM
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Originally Posted by Old Rotor Head
BIG problem. Old battery acid wicked down my wiring harness and took out the PCM, ECM and destroyed more than half on the pin connections on the computer. Not a cheap fix.

Original battery leaked and went south 10 years ago. Looks like my dealership may have tried to save a few bucks and never changed the harness when they repaired the computer.

(Laymen's description)
There is no ECM on a C5, so I assume you mean the TAC module. Did they actually test the PCM?
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Old Aug 24, 2010 | 10:46 PM
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Originally Posted by lucky131969
There is no ECM on a C5, so I assume you mean the TAC module. Did they actually test the PCM?
It's the Laymen again They told me they tested it and your right it was the TAC.
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Old Aug 24, 2010 | 11:17 PM
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Originally Posted by Old Rotor Head
It's the Laymen again They told me they tested it and your right it was the TAC.
Would be nice to know how they went about that. Did you see the damage? Did the acid get in the connectors, or just the wiring? Are they using a tech II i.e. can communication be established with the PCM?
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