I know I probaby have a headgasket leak. I add coolant to the overflow bottle and it disappears. I have a sweet smell coming out of the exhaust and a burning smell when I've been driving for a while and turn my teg off I can smell it coming through the vents.

I just wanted to know if anyone know where I can find instruction on how to replace the headgasket step by step. And is that hard to change??????

Thanks!!!!