F 350 6.0

showcrop · Jul 13, 2011

Yesterday and again today, after a short stop, 10 min or so after little load, but hot temperature outdoors, when started it seems to be running on only 4 cylinders for a few seconds. I know that it is supposed to do this if it gets severely overheated, so that it is pumping air through to help cool, but the temp gauge has been at only half scale. Anyone experience this?

bobs old iron · Jul 13, 2011

yes-on my 6.0, when starting out, the pedal goes half way with no response, looking at tail pipe, see black smoke, let off and re-floor to get power.feels like not running on all cyls. found out the egr valve gets stuck/carbonded up because of today's fuel... i started using bottle of conditioner from dealer. it to help lube pump/injectors/egv valve. seem to be helping so far. haven't had any problems in hot weather. [crossed fingers] p/s, have you changed filters.

Brian Jasper co. Ia · Jul 13, 2011

Sounds like sticking EGR valves. Pop them out of the intake. Pry up under each tab evenly so you don't snap or bend it in the intake. Use carb spray keeping the end with the connector up. Wash out all the coke deposits, grease the o rings and put it back.
It isn't "todays fuel", it's just diesel engines shouldn't have EGR valves in my professional opinion. The coke requires heat to burn off, heat that is removed by the EGR cooler.

F 350 6.0

showcrop

Well-known Member

bobs old iron

Well-known Member

Brian Jasper co. Ia

Well-known Member

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