Q: Radiator hose pops off

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The radiator hose keeps popping off, and the truck will not start.

The cooling system would need to be opened to see if, when the engine is cranked, the combustion of the engine is pressurizing the cooling system, and blowing off the hose. The head gasket may be blown. I recommend having a mechanic, such as one from YourMechanic, begin with an inspection of your car’s starting issue, and determine whether the head gasket is blown.

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