Truck died - grinding noise and then no gas on 2004 Ford Explorer Sport Trac

No check engine light no warning - nothing. Truck had a grinding noise and then no gas. A check of the oil showed discoloration (oil has been changed every 3k miles). Dealership stated that the engine was hydrolocked and also had to replace the intake manifold. Has anyone has this issue. Shouldn't the check engine light have come on?

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1 answer
no. check engine light is for fuel controls. if you get coolant in the cylinders, it will not set anything.

Roy