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Relentless70

Diesel Fuel Puddling in AFC Housing

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My truck has been acting sluggish lately over the last 3 days(low smoke, low EGTs, lower power). I thought it was the fuel filter being partially plugged, so I replaced it today. Took it for a ride, no change, still sluggish. Pulled the AFC top cover and diaphragm out, and noticed diesel fuel puddled in the AFC housing.

I've never had this happen before, and I suspect I need a partial injection pump rebuild. My question is what kind of damage can the fuel puddling do to my injection pump? I will buy an injection pump rebuild kit right now if I have to, but I really need my truck to be running for the next 5-7 days. Would my injection pump be ok for the next few days with this problem without further damage, or should I get this fixed ASAP? Thank you guys!

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Sound like its time for a seal kit to be put in... As long as your not leaking fuel into the crankcase oil or externally you should be fine..

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What did you find on this? You might just be leaking in there from an o-ring. If so, you should be able to buy just that o-ring and fix this. Whole lot cheaper buying just a $1 or $2 o-ring!!!!

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What did you find on this? You might just be leaking in there from an o-ring. If so, you should be able to buy just that o-ring and fix this. Whole lot cheaper buying just a $1 or $2 o-ring!!!!

I did end up buying a reseal kit, but I did save the old o-ring, so if it happens again in the future, I'll just buy an o-ring :). I also bought a longer AFC slide pin. The pump doesn't leak anymore :).

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