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RichieRich

Engine stumble/ cutout on E7 454

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I have a 1997 CH613 with the E7 454.  When I throttle into it, putting the motor under load, it stumbles and the bottom falls out of the turbo boost.  If I drive the truck  with a tender throttle foot, it doesn't stumble at all, only when you lay on the pedal.The fuel pressure stays consistent through the stumble, and the filters, priming pump, boost sensor, and throttle position sensor are all new. The truck doesn't have any active codes at all, and has been looked at by two different dealerships that were unable to diagnose the problem. Any suggestions on what the problem might be would be greatly appreciated. Thank you in advance. 

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I just went through that with my 2000 RD. The dealer reprogrammed the computer and that took care of the stumble.  Sounds just like what mine was doing.

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Try the above however have the  dealer repin the fuel pump plug if the reprogram dosent work!

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