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1aladdin2 02-04-2018 01:51 PM

2012 cummins 6.7 no start
2012 cummins 6.7 , deleted, 58,000 miles. warmed up for 20 mins drove 1/2 mile down road, it stalled out, no restart, no codes. put it in heated garage for 24 hours, diesel 911 In the tank, replaced fuel filter, I'm getting fuel to the filter, to the high pressure injection pump and to the rail, still nothing. it turns over, doesn't fire though. it will fire with ether, I was towing a trailer with a finicky plug, but all lights still work. any ideas? thanks

BigIron70 02-05-2018 10:05 PM

Make sure you disconnect grid heater when you use either, unless you like really loud noises when the either ignites in the intake. You need to monitor fuel rail pressure when cranking over engine. Sounds like injector or PLV (pressure limiting valve) leaking. Fuel pressure in rail should be equal to set point pressure when cranking. Make sure battery is fully charged when testing cranking pressure at rail.

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