1999 Ford F-250 Super Duty Q&A
1999 Ford F-250 Super Duty Question: Why would there be diesel in my radiator?
Sounds like one or more of the injector cups is leaking. They use a special Loctite that seals them to the heads. if they come loose or crack it introduces fuel from the fuel galley into the water jacket. The removal tool is a giant tap that cuts into the cup and then is slide hammered out and a new cup is driven in with the appropriate sealant - hemicuda
A coolant leak from the radiator can be caused by a defective thermostat bypass. This can cause pressure spikes in the cooling system, which leads to radiator failure. The thermostat assembly and r...