Random Overheating, but Only for a Short Time

[Troymclure]

nobody even suggested to try replacing your ECT sensor. it's located next to the firewall between the cylinder if you have a v6. that's a $50 part. that sensor is what controls the gauge inside the cabin.

Yeah but in between my random overheating, occasional rough starts, failed block test, low coolant level, water gurgling noise in the heater core/dash and strong smell of exhaust in the radiator, Im almost 100% its the headgasket.