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5.9 Liter CR Dodge Cummins 03-07 Discussion of 5.9 Liter Dodge Cummins Diesels with Common Rail Injection

Crank Sensor Function?

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Old 03-20-2012, 07:07 AM
hoofdoctor's Avatar
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Default Crank Sensor Function?
Does anyone know what the function of a "working" crank sensor is in a 2003 5.9 liter diesel? Or the function of a non working crank sensor? Thanks in advance!
 
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Old 03-20-2012, 07:18 AM
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It lets the ECM know when #1 cylinder is near top dead center (TDC) so it can activate #1 injector, and allow the engine to start.

As far as one that doesn't work, it'll throw certain codes, and possibly a no start or really erratic idle.
 
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