
staggs65
Moderator
Head gasket
HighlanderThere can only be one.
Another easy check if not mentioned yet is to look down into the piston dome through spark plug hole. A coolant leak will wash piston dome clean, it will look nice and shiny. A pic of that plug would clear things up in a hurry also. Pic's worth a thousand words!!
If you do get a h/f tester, make sure the gauge can get to 0(zero).I'm thinking of going over to harbor freight and see if they have a leak down tester that will work for me. Been wanting one and now would be a good time.