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Power Strokes
6.4 Tech
Strange heat problem
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[QUOTE="Dieselfever, post: 938318, member: 171"] I have a customer truck with similar issues; 2008 F450 6 speed Lariat, has had overheating problems on and off since new and it's had the thermostats. I did the DPF delete with gearhead tunes on a MM to try and help fuel mileage(he usually just leaves it on stock anyway). A local dealership said his overheating problem was either EGR related or water pump cavitation, since it already had the tunes we did the EGR delete. That made the coolant temps be erratic and also the heat in the cab would not work correctly as described by the OP. Now recently it is having issues with Puking coolant. I'm in the same boat, I don't want to say 100% that it's a headgasket issue but not sure what else could be making pressure in the cooling system now. Not trying to steal the thread but sounds like this truck and the OP's are having similar, if not the same issue [/QUOTE]
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