Smokin 6.0
Member
So I've got a 2005 Super Duty that I just bought off a guy that clams it was all "stock".. ran out good but no coolant in degas bottle. Zero rust(Florida truck) so I bought it anyway have all the parts ordered to stud it. But today I noticed that when I let it warm up the vents were warm when I pulled out of the driveway and after a minute of driving it went cold then a minute later hot again. Obviously the tstat at work but the rest of the drive (30-40 miles) I took it easy not getting over 10psi of boost and it never puked coolant forgot to add that I had added coolant to the min line. Is there a chance that it's a bad stat ? I mean I'm studding it anyway just made me curious.