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1990 Dodge D250 Question: truck runs for 20 minutes then it stop Icheck the relay they work what can i do

 

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cain, 5.9L V8, Victorville, CA, January 18, 2012, 15:40
 Rookie

no power to the injector or the coil after 20 minutes of running what can i check or fix

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  • Answer #1

    January 18, 2012, 15:42
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     Journeyman

    Sounds like a bad crankshaft position sensor. If it is cracked as the car warms up it expands causing a faulty reading.

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  • Answer #2

    January 24, 2012, 16:52
     Master

    Possibly intermittent CKP Sensor. Check you Crankshaft position sensor wiring and connectors. This sensors input to the Powertrain Control module is what supplies the voltage to the ASD relay to power up the injectors and Ignition.

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