Diesel Engine Runaway - 2005 Cummins
Here is something I have never heard of in all my years of turning wrenches and fixing stuff. Got a call, (multiple texts actually) from a close cousin yesterday. They had just got back from a nice...
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Twomed wrote:
Yep... bad fuel control so fuel continued to flow with key off...too much so as evidenced by white smoke.
Marine, aviation, train engines, all have positive fuel shutoffs...auto/rv never required.
Your only option is what he did to stall it, which could cause damage, OR pinch fuel line closed with vise grips, OR crack a filter... if you can get to it safely.
Kind of dumb, but not a very common occurence, until it happens to you...then it's 100%, just like a lightning strike or shark bite.
He may get lucky.
Usually, the engine is running off of oil so cutting off the diesel fuel to the engine will not do anything. As others have said, the only sure way to stop the engine is by cutting off the intake air.
