Fuel in coolant tank

[Blusmoke]

Not my truck, but at work we have an '02 1 ton 7.3 baby dump. Has been running rough, like occasionaly missing on one 1 cylinder, and fuel appears to be collecting & floating on top of the coolant in the res. tank. Head gasket? Ideas? Thanks!

[08stroker6.4]

I know on a 6.0 thats a cracked head. not sure about a 7.3. maybe a damaged injector
cup

[strokethis04]

I think they have injector cups they are common for leaking


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[dee004]

Also may be faulty injector or injectors.