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2001RD 690S E-Tech MACK, won't start or run with cam sensor plugged in,,any help greatly appreciated, will run & drive while unplugged,,,very low on power


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  • 2 weeks later...

There is an inconsistent signal between the cam and engine position sensors. The most likely cause is the flywheel ring has moved. You should be able to unplug one or the other sensor and the engine should run, may take some cranking to start though. There is a procedure to check if the notched position has moved on the flywheel but right now I can't find it. 

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