Why did the coolant reservoir cap blow off and the engine overheat?
Quite possible, but the thermostat could also have stuck or the radiator flow is restricted. I would recommend taking it to a shop you trust and getting it checked over, they can perform the tests necessary to detect blown head gaskets, poor flow.
My thoughts exactly. Thanks much...
Definetly have someone check all the radiator components. Run a diagnostic test. It pays to also have a local dealer check it with a minimal inspection fee.
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