If you have ever smelt diesel in coolant you know it’s a smell you can never forget. It’s almost rancid with a smell of sweetness. It’s also a really bad sign!
In this case this Kenworth is getting a new head. Injector tubes on a Cummins head mean an exchange head.
Coolant flush, changing of fuel filters because the coolant travels into the diesel and the diesel travels into the fuel.
If ignored the truck can overheat causing more damage like a cracked liner! If your coolant has a funny smell don’t leave it, till it’s too late.
