*Update:
It was a blown head gasket.*
In this video my truck has a blown head gasket and I'm showing you one way you can know you have a blown head gasket. If you start the truck when it's cold and it builds up pressure in the coolant reservoir tank in under a minute this is almost a certain sign you have a head gasket failure. Make sure you release any pressure that may exist before you start the truck up on a cold start when it's been sitting overnight to release any pressure that may be in the coolant tank. If it builds pressure in a short amount of time after doing this when the truck is cold this is a sure sign of head gasket failure or other problems such as a possible cracked head.
