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Re: Cummins 5.9 12 valve rotory injection pump idle hunting
Posted to HD/Fleet Forum on 4/3/2002

when the engine is first started,and it does start right up,the rpm climbs much higher than idle speed and after 5 seconds drops back down below idle rpm and the hunting [...] a minute the idle speed will stabilize,but If the throttle is moved and released the... Login to read more.