truck stopped running without warning now it has no fire to spark plugs scanned with snap on scanner no stored codes or previous codes

dorispearl
0

Asked by Jun 30, 2013 at 03:00 PM about the 2006 Dodge Ram 1500 ST Quad Cab LB

Question type: Maintenance & Repair

checked coils replaced cam sensor and crank sensor still no fire

3 Answers

kbro
22,085

Since when do dodge trucks have timing belts? and how does a fuel pump cause no spark? That's beyond me, since you have replaced both sensors I would suspect pcm since that's what grounds the coils. Since you have a scanner handy did you check to see if the pcm is seeing rpm? do the coils have power to them all?

dorispearl
0

I have voltage to all coils scanner reads no rpm

kbro
22,085

well if the wires to the cam and crank sensors had a fault a code would be set and the sensors are new. So I would really lean towards a bad pcm. but I would ohm out the sensors wires from the pcm to the sensor to be sure you don't have a issue there.

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