cooling system problem

My money is on the head gasket also I have seen and done way more than I want to remember. It is a good idea to replace the head bolts also

 

You can put the cart before the horse and go straight for the head gasket. OR, diagnose the problem find the root cause and repair it. You will be some sort of pist off if you tear off a head, put it back together and still got the same problem. You guys bag on dealers for throwing parts at a truck and half have said head gasket. Only one said diagnose. I have customers come into my shop everyday wanting to replace a part. Usually an expensive component because they saw a YouTube video or their buddy had the same problem and he did this. Turns out it was a $90 sensor and fixing a boost leak better than a $3500 turbo. Might just be a head gasket. That's why I mention the tester from Napa. But I still think it's better to rule out an issue than rrt and throw parts at it and hope you fix it.