OK, so I assume this is the problem. When driving my 1999 SUS the needle for the heat is in the mid range, then will jerk up and down and then proceed to rise to the hot level. When I got back to work after lunch, I happened to turn back around and saw my engine was smoking. I opened the hood and smelled burning coolant. So I am assuming that my thermostat needs replaced from what i have asked other people.
here is my question.
#1 Anyone got instructions on replacing a thermostat?
#2 Do I need to drain the system of coolant before I replace the thermostat?
