Have had 2 occurrences so far where the engine coolant temperature gauge will suddenly go to max heat, the low oil light comes on and engine power is drastically reduced. I stop the truck raise the hood and noticed that coolant around the pressure bottle cap. I restart the engine and all is back to normal. The oil level is good and the gauge indicates normal. The temperature gauge goes back to normal and it runs fine. The code on my action code reader is P1299 manufacturer control fuel air metering.
most likely Cylinder Head Temperature Sensor is bad
also check to see if there are no leaks and that the water pump is not leaking
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