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Old 04-24-2014, 10:03 PM
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unusual engine behavior

I have a 99 f250 born on 12/15/99. The truck is completely stock other than 6637 air filter. The truck runs great no hiccups or any other complaints. On my way home from work tonight I noticed when I got off the accelerator the engine is completely silent for at least 5-10 seconds. The tach was still reading approximately 6-800 Rpm. When I'd just tap the accelerator the engine noise comes back. I'll try and get audio tommrow after work. I appreciate any feedback. Thanks fellas KCCO
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Old 04-25-2014, 02:23 AM
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were you going above 45mph when this happened? 7.3's cut the injectors above 45mph around there when off the go pedal. If not, you could have a ipr valve going bad, mine did the same thing, changed it and all is well.
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